1/4-20 x 4 in. Round Head Phillips Machine Screws - 18-8 Stainless - 100qty
Features
- Round head with Phillips Drive
- 18-8 stainless Material
- 1/4-20 Diameter, 4" Length
Additional Notes
- Other sizes and quantities available by request | Tensile strength values for stainless screws are offered as approximations only; there is no single standard for the performance requirements of stainless machine screws.
Manufacturer Resources
Product Specs
- Minimum Purchase:
- 100 units
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Division:
- Electrical H1
- Drive Type:
- Phillips
- Driver Size:
- #3
- Fastener Head Height:
- 0.16 - 0.175 in.
- Fastener Head Type:
- Round
- Fastener Head Width:
- 0.443 - 0.472 in.
- Fastener Length:
- 4
- Hardness:
- Rockwell B85-B95
- Language Code:
- EN
- Material Standard:
- SAE
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- CT
- Pack Type:
- Jar
- Phillips Recess Depth:
- 0.121 - 0.147
- Phillips Recess Diameter:
- 0.255 - 0.268
- Phillips Recess Width:
- 0.034
- Product Group:
- Fasteners
- Product Height:
- 7.25 in
- Product Length:
- 4.5 in
- Product Weight:
- 4.74 lbs
- Product Width:
- 4.5 in
- Recess Penetration Gaging Depth:
- 0.104 - 0.130
- Sub Division:
- Electrical-E H2
- Tensile Strength:
- 80000 psi minimum
- Thread Per Inch:
- 20
- Department:
- Electrical
- Product Subgroup:
- Screws
- Product Type:
- Machine Screw
- Type2:
- Machine Screw
- Series:
- SRM
- Product Details:
- Machine Screw
- Product Material:
- 18-8 Stainless
Metallics JSRM132P – Frequently Asked Questions
1) What thread size and length are the Metallics JSRM132P machine screws?
The JSRM132P is a 1/4-20 machine screw, 4 inches long, with 20 threads per inch. That matches a standard 1/4-20 tapped hole or nut, so it drops into existing 1/4-20 prep without re-tapping. Length is measured on the shank below the round head.
2) Do the Metallics 1/4-20 stainless machine screws meet Buy American or ARRA requirements on a public job?
Both the ARRA and Buy American compliance flags on the JSRM132P read C (compliant). Country of origin is China. On a federally funded job where the spec distinguishes domestic manufacture from trade-agreement compliance, check which rule your contract actually invokes.
3) What size Phillips driver do I need for these 1/4-20 screws?
Use a #3 Phillips bit. The recess runs 0.255 to 0.268 inch in diameter with a depth of 0.121 to 0.147 inch, so a #2 bit will sit shallow and cam out under torque. Gaging depth for recess penetration is 0.104 to 0.130 inch.
4) Are these stainless screws okay for outdoor or damp electrical work?
The material is 18-8 stainless, the austenitic grade commonly used where corrosion resistance matters, so these hold up better than plain or zinc-plated steel in damp, exterior, or washdown locations. Hardness is Rockwell B85-B95. For chloride-heavy coastal or pool environments, 316 stainless is the step up.
5) How strong are these 1/4-20 stainless machine screws?
Tensile strength is 80,000 psi minimum, to SAE material standard. Worth noting on stainless: tensile figures are approximations, since there is no single performance standard for stainless machine screws. If a drawing calls out a specific strength class, a grade-marked steel cap screw is the surer route.
6) How are the Metallics JSRM132P screws packaged and what is the minimum order?
They ship 100 pieces in a jar, and 100 count is the order minimum. The jar of 100 weighs 4.74 lbs. Other sizes and quantities can be had by request.
7) Do these screws come with nuts, or do I order those separately?
Machine screws only, no nuts or washers in the jar. A 1/4-20 machine screw either threads into a tapped hole or takes a separate 1/4-20 nut, so plan on sourcing nuts and flat washers if the hole is not tapped.
How fast can I get the Metallics JSRM132P delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Metallics JSRM132P come with a warranty?
Absolutely. The Metallics JSRM132P is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Metallics JSRM132P?
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