Stainless Steel Ultra-Wide Flanged Button Head Screw
1/4"-20 Thread Size, 1/2" Long
Thread | |
Size | 1/4"-20 |
Direction | Right Hand |
Spacing | Coarse |
Type | UNC |
Fit | Unified Standard Class 2A |
Tip Type | Flat |
Size Designation | Oversized |
Fastener Head Type | Flanged, Rounded |
Head | |
Style | Button |
Profile | Wide |
Height | 0.21" |
Diameter | 0.38" |
Drive | |
Style | Hex |
Size | 5/32" |
Length | 1/2" |
Flange Diameter | 0.813" |
Threading | Fully Threaded |
Tensile Strength | 80,000 psi |
Flange Thickness | 0.109" |
Hardness | Rockwell B85 |
Material | 18-8 Stainless Steel |
Performance | Corrosion Resistant |
Screw Size Decimal Equivalent | 0.250" |
System of Measurement | Inch |
Country of Origin | United States |
DFARS Compliance | Specialty Metals Compliant (252.225-7009) |
Export Control Classification Number (ECCN) | EAR99 |
REACH Compliance | REACH (EC 1907/2006) (06/25/2025, 250 SVHC) Compliant |
RoHS Compliance | RoHS 3 (2015/863/EU) Compliant |
Schedule B Number | 731815.9000 |
U.S.–Mexico–Canada Agreement (USMCA) Qualifying | Yes |
Spread out pressure over a large area without adding a washer. Up to twice the diameter of standard flanges, the flange on these screws distributes pressure over a large area, protecting thin material. Made of stainless steel, they won't rust or corrode when exposed to moisture and chemicals, but they're not as strong as alloy steel. The button head looks similar to a pan head, but it's lower and more compact, taking up less space. With six contact points, the hex drive withstands more torque than slotted and Phillips to securely grip your driver.
Length is measured from under the head.
18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel can.
The information in this 3-D model is provided for reference only.