Steel Pan Head Screws with Spring Lock Washer
6-32 Thread Size, 1/4" Long
Locking Type | Lock Washer |
Thread | |
Size | 6-32 |
Direction | Right Hand |
Spacing | Coarse |
Type | UNC |
Fit | Unified Standard Class 2A |
Tip Type | Flat |
Fastener Head Type | Rounded |
Head | |
Style | Pan |
Profile | Standard |
Height | 0.097" |
Diameter | 0.27" |
Drive | |
Style | Phillips |
Size | No. 2 |
Washer | |
Type | Domed |
Material | Zinc-Plated Steel |
OD | 0.32" |
Thickness | 0.03" |
Lock Washer Type | Spring |
Length | 1/4" |
Threading | Fully Threaded |
Tensile Strength | 60,000 psi |
Specifications Met | ASME B18.13 |
Hardness | Rockwell B70 |
Material | Zinc-Plated Steel |
Performance | Vibration Resistant |
Screw Size Decimal Equivalent | 0.138" |
System of Measurement | Inch |
Country of Origin | Taiwan |
DFARS Compliance | Specialty Metals COTS-Exempt |
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 | No |
Grip tighter for better vibration resistance than tooth-lock washers. The spring-like washer on these screws flexes to keep tension constant and compensate for uneven surfaces, vibration changes, and temperature shifts. They have a moderate height and width profile, offering a middle ground between narrower button heads and wider truss heads. The Phillips drive easily aligns with drivers and withstands more torque than slotted drives, but drivers slip when you apply too much force. Also known as Square Cone Sems screws.
Length is measured from under the head.
Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
The information in this 3-D model is provided for reference only.