- Head Style: Rounded low-profile dome with internal hex socket
- Materials: Alloy steel (property class 10.9), 304 stainless steel, 316 stainless steel, aluminum alloy
- Size Range: #2-56 to 5/8″-11 (inch series); M3 to M16 (metric ISO coarse threads)
- Head Height: Approximately 50-60% of comparable standard socket head cap screws
- Head Diameter: Larger than standard socket cap screws for increased bearing surface
- Socket Sizes: 0.050″ (1.3mm) to 5/16″ (8mm) hex key sizes depending on screw diameter
- Standards: ASME B18.3, ISO 7380, DIN 7380 (superseded), BS 4168-4
- Hardness: Rockwell C36-43 (alloy steel class 10.9)
- Finish Options: Black oxide, passivated stainless, zinc plating, plain finish
- Description
- Features
- Specifications
BUTTON HEAD SOCKET CAP SCREWS
Button head socket cap screws provide a smooth, low-profile head ideal for applications where clearance, safety, aesthetics, or component protection are essential. The wide bearing surface distributes load evenly, making these fasteners well suited for enclosures, electronic housings, furniture hardware, machinery guards, light structural assemblies, and any environment requiring both a clean appearance and reliable performance.
Manufactured to tight dimensional standards for head diameter, head height, drive depth, fillet radius, and thread engagement, button head cap screws deliver consistent fit, repeatable torque performance, and dependable clamping strength across OEM and industrial applications.
WHY G-FAST DISTRIBUTION
Our engineering-focused approach ensures each fastener meets strict quality and performance standards. Whether off‑the‑shelf or custom‑manufactured, our button head socket cap screws deliver precision, strength, and reliability for modern industrial design.Low-profile rounded head for clean, safe, and aesthetic assemblies.
- Internal hex or Torx-style drive configurations for consistent wrench engagement.
- Precision tolerances for concentricity, fillet radius, and bearing surfaces.
- Inch and metric availability across standard and custom thread profiles.
- Suitable for medium-duty structural use where unobtrusive head geometry is required.
THREADING & PERFORMANCE
- Available in coarse, fine, and specialty pitches for both inch and metric threads.
- Screw points supplied flat or chamfered for easy assembly.
- Manufactured to rigorous tightening and tensile performance expectations for durable joint integrity.
AVAILABLE MATERIALS
G-Fast Distribution supplies button head socket cap screws in a broad range of performance materials:
Carbon & Alloy Steels
- Standard alloy steel (quenched and tempered)
- High-strength grades for demanding assemblies
Stainless Steels
- 300 Series Stainless Steel – excellent corrosion resistance for industrial, marine, medical, and food environments
- 410 Bright Hardened Stainless Steel – high-strength stainless with improved torque and wear performance
Advanced & Exotic Materials
- Titanium – exceptional corrosion resistance and high strength-to-weight ratio
- Monel – ideal for saltwater, marine, and corrosive environments
- Hastelloy – engineered for extreme chemical, heat, and corrosion resistance
- Additional specialty alloys available upon request
INCH & METRIC AVAILABILITY
- Standard inch sizes from miniature through heavy-duty diameters
- Full metric range compliant with ISO/DIN specifications
- Custom lengths, modified geometries, and made-to-print fasteners available through Fasteneering™