Tamper-Resistant Button Head Hex Drive Screws
Alloy Steel, 1/4"-20 Thread, 3/4" Long



Thread | |
Size | 1/4"-20 |
Direction | Right Hand |
Spacing | Coarse |
Type | UNC |
Fit | Unified Standard Class 3A |
Tip Type | Flat |
Fastener Head Type | Rounded |
Head | |
Style | Button |
Profile | Standard |
Height | 0.132" |
Diameter | 0.437" |
Drive | |
Style | Tamper-Resistant Hex |
Size | 5/32" |
Length | 3/4" |
Threading | Fully Threaded |
Tensile Strength | 130,000 psi |
Specifications Met | ASME B18.3, ASTM F835 |
Hardness | Rockwell C39 |
Material | Black-Oxide Alloy Steel |
Performance | High Strength, Tamper Resistant |
Screw Size Decimal Equivalent | 0.250" |
System of Measurement | Inch |
Country of Origin | United States |
DFARS Compliance | Not Specialty Metals Compliant |
Export Control Classification Number (ECCN) | EAR99 |
REACH Compliance | REACH (EC 1907/2006) (06/14/2023, 235 SVHC) Compliant |
RoHS Compliance | RoHS 3 (2015/863/EU) Compliant |
Schedule B Number | 731815.9000 |
U.S.–Mexico–Canada Agreement (USMCA) Qualifying | Yes |
Related Products | |
Our strongest hex-drive screws for deterring unauthorized access. Also known as pin-in-hex and pin-in-socket drives, these screws have a security pin in the drive that you can only turn with a tamper-resistant hex driver. The deep six-point opening helps them withstand torque without damaging the drive. Made of alloy steel, they have nearly twice the tensile strength of other screws. The button head looks similar to a pan head, but it's lower and more compact, taking up less space.
Length is measured from under the head.
Black-Oxide Alloy Steel—Typically chosen for their appearance, these screws have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
L-Keys—Turn screws by hand for more control and less chance of overtightening compared to power tools.
Power Tool Bits—Pair these bits with your power tools to turn screws more quickly than manual tools.
Adhere
The information in this 3-D model is provided for reference only.


























