1/4-20 x 3/8 in. Flat Head Phillips Machine Screws - Steel Zinc - 100qty
Additional Notes
- Other sizes and quantities available by request | Hardness and tensile strength standards are offered as guides only for stainless machine screws. There is currently no national standard for these performance requirements for stainless machine screws.
Features
- Zinc yellow screws are popular in electronics applications.
- 1/4-20 Diameter, 3/8" Length
- Steel Zinc Material
- Flat head with Phillips Drive
Manufacturer Resources
Product Specs
- Minimum Purchase:
- 100 units
- Arra Compliant:
- N
- Buy American Compliant:
- No
- Dimensional Standard:
- ASME B18.6.3-1998
- Division:
- Electrical H1
- Drive Type:
- Phillips
- Driver Size:
- #3
- Fastener Head Height:
- 0.131 - 0.153 in.
- Fastener Head Type:
- Flat
- Fastener Head Width:
- 0.442 - 0.477 in.
- Fastener Length:
- 8-Mar
- Field Application:
- Electrical, Plumbing, Heating and Air Conditioning Industries
- Gaging Diameter:
- 0.424
- Hardness:
- Rockwell B70-B100
- Language Code:
- EN
- Material Standard:
- AISI 1006 - 1022
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Flat_Head_Mach_Screw.pdf
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- JR
- Pack Type:
- Jar
- Phillips Recess Depth:
- 0.16
- Phillips Recess Diameter:
- 0.276
- Phillips Recess Width:
- 0.036
- Product Group:
- Fasteners
- Product Height:
- 2.15 in
- Product Length:
- 3 in
- Product Weight:
- 0.63 lbs
- Product Width:
- 3 in
- Protrusion Gaging Diameter:
- 0.029 - 0.050 Above
- Sub Division:
- Electrical-E H2
- Tensile Strength:
- 1900 lb minimum
- Thread Per Inch:
- 20
- Thread Standard:
- ANSI/ASME B1.1
- Thread Type:
- UNC
- Department:
- Electrical
- Product Subgroup:
- Screws
- Product Type:
- Machine Screw
- Type2:
- Machine Screw
- Series:
- FM and FMP
- Product Finish:
- Zinc
- Product Details:
- Machine Screw
- Product Material:
- Steel Zinc
Metallics JFMP22 – Frequently Asked Questions
1) Will a 1/4-20 x 3/8 in. flat head machine screw thread into a standard panel or box with 1/4-20 tapped holes?
Yes. The JFMP22 is a 1/4-20 UNC thread cut to ANSI/ASME B1.1, 20 threads per inch, so it mates with any standard 1/4-20 tapped hole or 1/4-20 nut. At 3/8 in. long it is a short screw, so it suits thin sheet metal and tapped-boss work; if your material plus the tapped depth exceeds about 3/8 in. of engagement you need a longer length.
2) Are these screws Buy American or ARRA compliant for a government job?
No. The JFMP22 is not Buy American compliant and is not ARRA compliant; country of origin is listed as multiple. If your contract carries domestic sourcing requirements, this part will not satisfy them.
3) What driver bit do I need for the Metallics JFMP22 machine screws?
A #3 Phillips bit. The flat head on the JFMP22 takes a Phillips recess 0.276 in. in diameter and 0.160 in. deep, so a #2 bit will cam out and chew the recess under torque. Keep a #3 on the driver for these.
4) How many 1/4-20 x 3/8 flat head Phillips screws come in a jar?
The JFMP22 ships as a jar of 100, and the jar is the minimum order quantity. The packed jar weighs 0.63 lbs. Plan the count per jar when you are kitting out a job rather than ordering by the piece.
5) Is zinc plated steel okay for outdoor or wet locations?
The JFMP22 is zinc plated carbon steel (AISI 1006-1022 material), which is a mild corrosion barrier meant for dry interior service such as enclosures, panels and indoor mechanical work. For exterior, damp or washdown locations, specify a stainless machine screw in the same 1/4-20 x 3/8 size instead.
6) Do these Metallics machine screws meet a dimensional spec I can put on a submittal?
Yes. Head and recess geometry conform to ASME B18.6.3-1998 for flat head machine screws, threads to ANSI/ASME B1.1 UNC, and the steel to AISI 1006-1022. Gaging diameter is 0.424 with protrusion 0.029 to 0.050 above gage. That is enough to cite on a submittal for a tapped 1/4-20 countersunk connection.
How fast can I get the Metallics JFMP22 delivered?
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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 JFMP22 come with a warranty?
Absolutely. The Metallics JFMP22 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 JFMP22?
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