by Steve Greenberg | May 10, 2025 | Fasteners
When precision alignment and secure fastening matter, selecting the appropriate pin type can mean the difference between reliable performance and costly equipment failure. Understanding the key differences between pin designs, materials, and applications helps engineers specify the optimal solution for their specific needs.
Understanding Pin Fastener Fundamentals
Unlike threaded fasteners, pins provide non-threaded alignment and positioning solutions. They excel in applications requiring precise component location, shear load distribution, and quick assembly or disassembly capabilities. Their primary functions include maintaining accurate alignment tolerances, preventing rotation in mechanical linkages, and providing easy maintenance access in industrial equipment.
Comparing Common Pin Types
Solid Cylindrical Designs
These precision-ground pins offer tight diameter tolerances essential for accurate component alignment. They work best in tooling systems, load-bearing joints, and high-shear applications where dimensional accuracy is critical. Engineers typically specify these for press-fit installations requiring interference fits or precision slip-fit assemblies with secondary retention.
The key consideration is tolerance class selection. Tighter tolerances ensure proper fit but increase manufacturing costs. Applications with less critical alignment requirements can use standard tolerance grades for cost savings.
Headed Pin Solutions
Adding a head creates a built-in installation stop, simplifying assembly processes and ensuring consistent positioning. This design eliminates the need for additional washers or retaining hardware in many applications. Common in construction equipment, automotive linkages, and adjustable assemblies, headed configurations speed installation while maintaining security.
Various head styles serve different purposes. Shoulder designs provide precise depth control, while flanged heads offer larger bearing surfaces for softer materials. The head also facilitates easier removal during maintenance procedures.
Quick-Release Mechanisms
For equipment requiring frequent adjustments or regular maintenance access, quick-release pins eliminate the need for tools during assembly and disassembly. Ball-lock, detent, and spring-loaded designs offer varying levels of retention strength and release force requirements.
These solutions excel in aerospace interior panels, industrial workstations, and military equipment where rapid configuration changes are necessary. The trade-off is typically higher cost compared to standard pin designs.
Material Selection Considerations
Stainless Steel Applications
When corrosion resistance is paramount, stainless steel grades provide reliable performance in challenging environments. Type 304 (18-8) stainless offers general-purpose corrosion protection suitable for outdoor installations and moisture exposure. Type 316 stainless provides enhanced resistance for marine environments and chemical processing applications.
Medical device manufacturing and food processing equipment often require stainless specifications to meet sanitation standards and prevent contamination. The material’s non-magnetic properties also benefit certain electronic and aerospace applications.
Heat-treated pins deliver superior wear resistance and fatigue life in demanding conditions. Hardness levels typically reach Rockwell C 60 or higher, providing dimensional stability under repeated loading cycles. High-speed automated equipment, precision tooling systems, and heavy machinery benefit from hardened specifications.
The increased hardness comes with material brittleness considerations. Applications with impact loading or extreme vibration may require careful evaluation of hardened versus unhardened options.
Alloy Steel Options
Alloy grades like 4140 and 4340 offer optimized strength-to-weight ratios for performance-critical applications. These materials provide heat treatment flexibility, allowing manufacturers to achieve specific mechanical properties through controlled processing. Aerospace and high-performance automotive systems frequently specify alloy compositions for their superior engineering characteristics.
Industry-Specific Requirements
Aerospace Standards
Precision tolerance control, complete material traceability, and rigorous testing protocols define aerospace pin specifications. Dimensional accuracy often requires tolerances within ±0.0002 inches. Weight optimization drives material selection while maintaining required strength characteristics. Applications include control linkages, interior panel fastening, and landing gear components.
Automotive Manufacturing
High-volume production compatibility and cost optimization guide automotive pin selection. Parts must withstand vibration, temperature cycling, and extended service life while meeting aggressive cost targets. Common uses include suspension linkages, engine mounts, and body panel alignment systems.
Heavy Equipment Needs
Extreme load capacity and field replaceability characterize heavy equipment pin requirements. Corrosion protection and impact resistance ensure reliable operation in harsh outdoor conditions. Hydraulic cylinder connections, boom pivot points, and bucket assemblies depend on robust pin designs.
Making the Right Choice
Successful pin selection balances performance requirements, cost considerations, and application-specific demands. Consider load characteristics, environmental exposure, tolerance requirements, and maintenance accessibility when evaluating options.
Working with experienced fastener manufacturers provides access to application engineering support, material recommendation guidance, and manufacturing method selection expertise. Technical partners help optimize designs for cost-effectiveness without compromising performance.
Whether your project involves aerospace precision, automotive volume production, or industrial durability requirements, understanding these fundamental selection criteria enables informed specification decisions that enhance assembly reliability and long-term performance.
Need expert guidance on pin specifications for your application? G-Fast combines 35+ years of fastener manufacturing expertise with comprehensive engineering support. Our USA-based facilities deliver custom solutions from prototype through production. Explore our precision pin capabilities or contact our technical team for application-specific recommendations.
Steve Greenberg
Steve Greenberg has over 35 years of experience in the fastener industry. His expertise includes interpreting and engineering prints, understanding the customer’s special requirements and delivering economical quoting and manufacturing of custom fasteners and components for diverse applications.
Known as the supply chain “hero” for solving fastener sourcing challenges, Steve shares practical insights with the customer to arrive at the best options. By taking into consideration, material selection, and optimal manufacturing methods, G-Fast can arrive at a precision engineered finished fastener or component as required for his customer’s assembly or finished product.
The G-Fast blog will share examples of completed projects, providing valuable guidance to engineers and purchasing agents seeking reliable, innovative fastening solutions.
by Steve Greenberg | May 3, 2025 | Pins
When secure, removable fastening is essential, industrial pins provide reliable solutions. Whether you need hitch pin clips, stainless dowel pins, hardened dowel pins, headed pins, or quick release pins, selecting the right type ensures safety and efficiency. At G-Fast, we supply premium USA-made pins to New York, New Jersey, Chicago, and nationwide—delivering durable fastening solutions for every application.
Why Industrial Pins Are Essential
Industrial pins serve critical functions in machinery, construction, and manufacturing:
✔ Secure alignment – Maintain precise component positioning
✔ Quick assembly/disassembly – Enable fast maintenance and adjustments
✔ Shear resistance – Withstand heavy loads without bending
✔ Corrosion resistance – Stainless options for harsh environments
✔ Vibration-proof retention – Stay locked even under stress
5 Key Types of Industrial Pins & Their Applications
1. Hitch Pin Clips – Secure & Removable Fastening
Hitch pin clips provide a quick-release mechanism for securing pins in place.
Best for:
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Agricultural equipment
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Trailer hitches
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Scaffolding
Key Features:
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Easy to install and remove
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Prevents pin loss under vibration
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Available in carbon steel and stainless steel
2. Stainless Dowel Pins – Corrosion-Resistant Precision
Stainless dowel pins ensure accurate alignment in corrosive environments.
Critical applications:
Why choose them?
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304 & 316 stainless steel options
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Resist rust, chemicals, and moisture
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Maintain tight tolerances (±0.0005″)
3. Hardened Dowel Pins – Maximum Strength for Heavy Loads
Hardened dowel pins are heat-treated for extreme durability.
Common uses:
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Automotive transmissions
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Industrial machinery
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Aerospace assemblies
Advantages:
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Rockwell hardness up to 60 HRC
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High shear strength (100,000+ PSI)
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Precision-ground for tight fits
4. Headed Pins – Easy Installation & Retention
Headed pins feature a built-in flange for secure placement.
Ideal for:
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Hinge assemblies
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Retaining linkages
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Locating components
Key benefits:
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No separate washer needed
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Prevents pull-through
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Available in various head styles (flat, round, countersunk)
5. Quick Release Pins – Fast, Tool-Free Removal
Quick release pins allow instant disengagement with a simple pull.
Perfect for:
Why they’re essential:
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Ball-lock or spring-loaded designs
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Reusable thousands of cycles
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Multiple grip lengths available
Choosing the Right Pin for Your Application
Consider these factors when selecting industrial pins:
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Material – Steel, stainless steel, or hardened alloys
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Load requirements – Shear strength and durability needs
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Environmental conditions – Corrosion resistance
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Installation method – Press-fit, threaded, or quick-release
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Precision needs – Tolerance levels for alignment
Why Choose G-Fast for Industrial Pins?
We provide:
✅ 100% USA-made products
✅ Same-day shipping nationwide
✅ Technical support for your specific needs
✅ Competitive pricing without quality compromises
✅ Full material traceability
Our pins meet or exceed:
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ASTM standards
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MIL-SPEC requirements
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SAE specifications
Industry Applications Across the USA
Our pins are trusted in:
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New York construction and manufacturing
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New Jersey marine and aerospace industries
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Chicago heavy machinery and automotive sectors
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Nationwide infrastructure and equipment maintenance
Get Your Industrial Pins Today
Upgrade your fastening solutions with premium USA-made pins from G-Fast. Browse our complete selection of hitch pin clips, stainless dowel pins, hardened dowel pins, headed pins, and quick release pins at: 👉 https://g-fast.com//products/pins/
by Steve Greenberg | Apr 27, 2025 | Pins
When precision alignment and secure fastening matter, industrial pins like stainless dowel pins, hardened dowel pins, headed pins, and quick release pins are essential. At G-Fast, we supply top-quality, USA-made pins to industries across New York, New Jersey, Chicago, and nationwide. Whether you need corrosion-resistant stainless dowel pins for marine applications or heavy-duty hardened dowel pins for machinery, we deliver reliable fastening solutions.
Why Industrial Pins Are Critical for Mechanical Applications
Industrial pins provide precise alignment, prevent movement between parts, and offer quick assembly/disassembly. Key benefits include:
- Accurate positioning – Dowel pins ensure perfect component alignment
- Durability – Hardened pins withstand heavy loads and wear
- Quick operation – Release pins enable fast maintenance and adjustments
- Corrosion resistance – Stainless steel options for harsh environments
Types of Industrial Pins & Their Applications
1. Stainless Dowel Pins
- Material: 300 or 400 series stainless steel
- Hardness: Typically 30-40 HRC
- Key Features:
- Excellent corrosion resistance
- Moderate strength for general use
- Common Applications:
- Food processing equipment
- Marine hardware
- Medical devices
2. Hardened Dowel Pins
- Material: Alloy steel, hardened and ground
- Hardness: 58-64 HRC
- Key Features:
- Superior wear resistance
- Tight tolerances (±0.0002″)
- Common Applications:
- Automotive transmissions
- Heavy machinery
- Precision tooling
3. Headed Pins
- Types: Shoulder pins, grooved pins, drive pins
- Materials: Steel, stainless steel, brass
- Key Features:
- Positive stop for consistent positioning
- Various head styles (flat, round, countersunk)
- Common Applications:
- Aerospace assemblies
- Agricultural equipment
- Consumer electronics
4. Quick Release Pins
- Types: Ball lock pins, push-pull pins, hitch pins
- Materials: Steel with zinc or chrome plating
- Key Features:
- One-handed operation
- Positive locking mechanism
- Common Applications:
- Military equipment
- Material handling
- Temporary fixtures
How to Select the Right Industrial Pin
| Consideration |
Stainless Dowel Pins |
Hardened Dowel Pins |
Headed Pins |
Quick Release Pins |
| Strength Needs |
Moderate |
High |
Medium-High |
Medium |
| Environment |
Corrosive |
Indoor/Controlled |
Varies |
Any |
| Installation |
Press-fit |
Press-fit |
Press-fit/Threaded |
Hand-operated |
| Removability |
Permanent |
Permanent |
Semi-permanent |
Temporary |
Why Choose G-Fast for Your Pin Requirements?
✔ American-Made Quality – All pins meet or exceed ANSI/ASME standards
✔ Rapid Delivery – Stocked inventory for fast shipping nationwide
✔ Custom Solutions – Special diameters, lengths, and materials available
✔ Technical Expertise – 25+ years serving precision industries
Industry-Specific Applications
Automotive Manufacturing
- Hardened dowel pins for engine blocks
- Quick release pins for assembly jigs
Aerospace & Defense
- Stainless dowel pins for avionics
- Headed pins for structural components
Industrial Machinery
- Hardened pins for gear alignment
- Release pins for maintenance access
Frequently Asked Questions
Q: What’s the difference between standard and metric dowel pins?
A: Standard pins follow inch measurements while metric pins use millimeter dimensions. We stock both.
Q: Can you provide custom-length quick release pins?
A: Yes, we manufacture pins from 1/4″ to 1″ diameters in custom lengths.
Q: Are your stainless pins suitable for saltwater exposure?
A: Our 316 stainless pins offer superior marine corrosion resistance.
Trusted by Manufacturers Nationwide
G-Fast has been the preferred supplier for:
- Fortune 500 manufacturers
- Military contractors
- Precision machine shops
For industrial-grade stainless dowel pins, hardened dowel pins, headed pins, and quick release pins, visit G-Fast Pins Division today.
Call (555) 123-4567 for Volume Discounts!
by Steve Greenberg | Apr 18, 2025 | Pins
When it comes to reliable fastening solutions across industries, hitch pin clips stand out for their simplicity, strength, and reusability. These essential components are widely used in agricultural machinery, trailers, construction equipment, and industrial assemblies. At G-Fast, we manufacture and supply USA-made hitch pin clips designed for performance and longevity.
Serving professionals and businesses across New York, New Jersey, Chicago, and the entire USA, G-Fast is your trusted partner for high-quality fasteners. We offer a complete line of precision-engineered hitch pin clips, stainless dowel pins, hardened dowel pins, headed pins, and quick release pins to meet diverse project needs.
What Are Hitch Pin Clips?
Hitch pin clips (also called R-clips or hairpin cotter pins) are commonly used to secure the ends of round shafts such as axles, clevis pins, or hitch pins. These clips can be installed quickly by hand without tools and are easily removed, making them ideal for repetitive use.
Key Features:
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Easy to install and remove
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Suitable for temporary or semi-permanent fastening
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Compatible with various shaft sizes
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Resistant to vibration and loosening
At G-Fast, we manufacture hitch pin clips from high-strength steel and offer options in zinc-plated, stainless steel, and custom finishes.
Stainless Dowel Pins for High-Precision Assembly
Stainless dowel pins are solid cylindrical rods used for aligning or joining components in machinery, electronics, automotive assemblies, and robotics. Their corrosion resistance makes them perfect for outdoor and marine environments.
Common Applications:
We offer stainless dowel pins in multiple diameters and lengths, including metric and inch sizes, for accurate, repeatable alignment.
Hardened Dowel Pins for Maximum Strength
When strength and durability are critical, hardened dowel pins offer superior shear resistance. These pins are heat-treated for increased hardness and are used in heavy-duty applications like:
G-Fast provides hardened dowel pins in a variety of grades and tolerances, ensuring secure fits that won’t wear down over time.
Headed Pins: Enhanced Grip and Retention
Headed pins feature a solid head on one end to prevent the pin from passing completely through a hole. This makes them perfect for applications that require retention or push-pull operations.
Industries That Use Headed Pins:
G-Fast manufactures headed pins in steel, stainless steel, brass, and aluminum, offering flexibility in design and functionality.
Quick Release Pins for Fast, Tool-Free Operation
Quick release pins are a time-saving solution for assemblies that require frequent removal or adjustments. These pins use a spring-loaded ball detent or button mechanism to lock in place without tools.
Benefits of Quick Release Pins:
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No tools required for installation/removal
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Reduced assembly and disassembly time
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Secure locking under vibration or movement
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Available in T-handle, L-handle, and ring handle styles
From temporary assemblies to field repairs, quick release pins are used in industries such as construction, military, and logistics. G-Fast supplies custom sizes and grip lengths to fit your exact need.
Why G-Fast Is the Leading Supplier Across the USA
G-Fast is known for its quality, reliability, and fast delivery. We proudly manufacture and supply USA-made hitch pin clips and industrial pins that meet or exceed industry standards. Whether you’re based in New York, New Jersey, Chicago, or anywhere in the USA, we’re committed to helping you get the right product fast.
Our Strengths:
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✅ 100% USA-manufactured products
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✅ High-volume capabilities and custom orders
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✅ Technical expertise to support your design or application
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✅ Timely delivery across all 50 states
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✅ Competitive pricing with no compromise on quality
From large OEMs to independent fabricators, our pins are trusted across industries.
Applications Across Industries
Our hitch pin clips, dowel pins, headed pins, and quick release pins serve critical functions in:
No matter your industry, we can provide precision pins and clips tailored to your specific application.
Partner with G-Fast for Your Fastener Needs
If you’re searching for a dependable, USA-based supplier of hitch pin clips and other precision fasteners, G-Fast is your go-to partner. We combine quality manufacturing with responsive service to keep your projects on track.
Whether you’re in Chicago, New Jersey, New York, or any region across the USA, we’re here to support you with quality products and on-time delivery.
by Steve Greenberg | Apr 16, 2025 | Pins
When alignment, strength, and quick assembly matter, professionals choose stainless dowel pins, hardened dowel pins, and quick release pins from G-Fast. As a leading US manufacturer and distributor, we supply high-quality headed pins and precision fastening solutions to manufacturers, fabricators, and industrial clients across New York, New Jersey, Chicago, and nationwide. Our American-made products meet the most demanding industry specifications while offering competitive pricing and reliable delivery.
Why Proper Pin Selection is Critical
Precision pins serve essential functions in mechanical assemblies:
- Accurate Alignment – Stainless dowel pins maintain component positioning within 0.0005″ tolerance
- Shear Strength – Hardened dowel pins withstand up to 150,000 psi load capacity
- Quick Assembly – Quick release pins enable tool-free disassembly in seconds
- Secure Fastening – Headed pins provide positive retention without threads
- Corrosion Resistance – 300-series stainless options for harsh environments
Fact: Proper pin selection can reduce assembly time by up to 40% in production environments (Industrial Fasteners Institute).
Our Precision Pin Product Line
1. Stainless Dowel Pins
- Grades: 303, 304, and 316 stainless steel
- Tolerances: ±0.0002″ for precision applications
- Surface Finish: 8-16 µin Ra (microinch roughness average)
- Common Applications:
- Medical equipment
- Food processing machinery
- Marine hardware
2. Hardened Dowel Pins
- Material: 52100 alloy steel
- Hardness: 60-64 HRC (Rockwell C scale)
- Plating Options: Zinc, nickel, black oxide
- Key Benefits:
- Maximum shear strength
- Wear resistance
- Dimensional stability
3. Headed Pins
- Head Styles: Round, flat, and countersunk
- Shank Types: Straight, tapered, and knurled
- Materials: Carbon steel, stainless, brass
- Typical Uses:
- Hinge pins
- Retaining applications
- Machinery guards
4. Quick Release Pins
- Types: Ball lock, push-pull, and hairpin cotter
- Handle Options: T-grip, ring pull, button release
- Load Ratings: Up to 5,000 lbs tensile strength
- Advantages:
- No tools required
- Reusable design
- Positive locking
Industries We Serve Nationwide
Aerospace & Defense
- Aircraft assemblies
- Avionics mounting
- Military equipment
Automotive Manufacturing
- Jig and fixture alignment
- Engine components
- Transmission systems
Industrial Machinery
- Robotic arms
- Conveyor systems
- Press tools
Medical Equipment
- Surgical devices
- Imaging machines
- Dental chairs
Technical Specifications Comparison
| Pin Type |
Material Options |
Diameter Range |
Tolerance |
Typical Hardness |
| Stainless Dowel |
303/304/316 SS |
0.5mm-25mm |
±0.0002″ |
35-45 HRC |
| Hardened Dowel |
52100 Steel |
1mm-50mm |
±0.0005″ |
60-64 HRC |
| Headed Pins |
Carbon/Stainless |
2mm-30mm |
±0.001″ |
Varies by material |
| Quick Release |
Steel/Stainless |
3mm-20mm |
±0.002″ |
45-50 HRC |
Why Choose G-Fast for Your Pin Requirements?
✅ US Manufacturing – Made in America to exacting standards
✅ Rapid Turnaround – Most orders ship same day
✅ Technical Expertise – Engineers available for application support
✅ Custom Solutions – Special diameters, lengths, and materials
✅ Quality Assurance – Full material certifications and traceability
Frequently Asked Questions
Q: What’s the difference between standard and hardened dowel pins?
A: Hardened dowel pins (60-64 HRC) offer 3x the shear strength of standard pins (30-40 HRC) for high-stress applications.
Q: Can quick release pins be used in vibrating environments?
A: Our ball-lock models feature dual detents for vibration resistance up to 15G.
Q: Do you offer metric sized pins?
A: Yes – we stock both inch and metric sizes with full dimensional compatibility.
Q: What’s the lead time for custom headed pins?
A: Standard custom orders ship in 3-5 business days; expedited options available.
Order Your Precision Pins Today
Trust G-Fast for all your pin requirements across:
📍 New York
📍 New Jersey
📍 Chicago
📍 Nationwide
📞 Call for Volume Discounts
📧 Email for Custom Quotes
🌐 Browse Our Catalog: https://g-fast.com//products/pins/
