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Tamper-Pruf Screw Button Head Machine Screw: Black Oxide, Steel, Security Hex, 1/4"-20 Thread Size, 1/2 in Shank Lg, 25 PK

Item # 616W237

$14.01 Pack of 25

Product Specs

Finish: Black Oxide
Material: Steel
Drive: Security Hex
Thread Size: 1/4"-20
Shank Length: 1⁄2 in
Pack Qty: 25
System of Measurement: Imperial
Head Style: Round
Specifications Met: ANSI B18.6.3; ASME B18.6.3
Drive Size: 5/32 in
Head Diameter: 0.437 in
Head Height: 0.132 in
Minimum Recommended Hole Size: 0.2188 in
Minimum Tensile Strength: 180,000 psi
Pack Unit: PK
REACH Compliant: Yes
Removable: Yes
Resistance Properties: Tamper Resistant
RoHS Compliant: Yes
Rockwell Hardness: C38
Screw Size: 1/4 in
Thread: Fully Threaded
Thread Direction: Right Hand
Thread Fit: 3A
Thread Type: UNC
Manufacturer Part Number: 21520

Compliance and Restrictions

Country Of Origin

  • USA

About Machine Screws

The standard metal-to-metal fastener, machine screws install with a driver into a threaded hole or are inserted into a through-hole and fastened with a nut.