Metallics JSRM100 1/4-20 x 3 i...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$385.71
Metallics JSRM100 1/4-20 x 3 in. Round Head Slotted Machine Screws - 18-8 Stainless - 100qty

Metallics JSRM100 1/4-20 x 3 in. Round Head Slotted Machine Screws - 18-8 Stainless - Each

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Model: JSRM100
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$385.71
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1/4-20 x 3 in. Round Head Slotted Machine Screws - 18-8 Stainless - 100qty

  • 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.

  • Features

    • 1/4-20 Diameter, 3" Length
    • 18-8 stainless Material
    • Round head with slotted Drive

Manufacturer Resources

Product Specs

Minimum Purchase:
100 units
Arra Compliant:
N
Buy American Compliant:
No
Division:
Electrical H1
Drive Type:
Slotted
Fastener Head Height:
0.16 - 0.175 in.
Fastener Head Type:
Round
Fastener Head Width:
0.443 - 0.472 in.
Fastener Length:
3
Field Application:
Electrical, Plumbing, Heating and Air Conditioning Industries
Hardness:
Rockwell B85-B95
Language Code:
EN
Material Standard:
SAE
Neurspe:
https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Round_Head_Machine_Screw.pdf
Order Minimum Imperial:
100
Order Minimum Uom Imperial:
JR
Pack Type:
Jar
Product Group:
Fasteners
Product Height:
7.25 in
Product Length:
4.5 in
Product Weight:
3.7 lbs
Product Width:
4.5 in
Recess Penetration Gaging Depth:
0.104 - 0.130
Slot Depth:
0.082 - 0.109
Slot Width:
0.064 - 0.075
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 JSRM100 – Frequently Asked Questions

1) How many screws come in the Metallics JSRM100 pack, and can I buy just a few?
The JSRM100 ships as a jar of 100 screws, and 100 is the order minimum, so it is sold by the jar rather than by the piece. The jar weighs 3.7 lbs.
2) What thread does this 1/4-20 machine screw use, and will it take a standard 1/4-20 nut?
Threading is 1/4-20, meaning a 1/4 inch nominal diameter at 20 threads per inch, which is standard Unified Coarse. Any standard 1/4-20 UNC nut, coupling nut, or tapped 1/4-20 hole, such as strut channel nuts or threaded rod couplings, will mate with it.
3) Do these Metallics stainless screws qualify for a Buy American or ARRA funded job?
No. The JSRM100 is listed as not Buy American compliant and not ARRA compliant, with multiple countries of origin. For federally funded work carrying domestic sourcing requirements, you will need a domestically produced fastener instead.
4) Will stainless 1/4-20 round head screws hold up outdoors or in a damp mechanical room?
They are 18-8 stainless, the common austenitic grade used where plated steel would rust, so damp mechanical rooms, exterior boxes, and wash-down areas are fair use. Metallics lists the application as electrical, plumbing, heating and air conditioning work. Hardness runs Rockwell B85-B95.
5) What is the tensile strength of these 18-8 stainless machine screws?
Rated at 80,000 psi minimum. Metallics notes that tensile values for stainless screws are approximations, since there is no single performance standard for stainless machine screws, so do not treat this as a graded structural fastener the way you would an SAE grade bolt.
6) How much does the round head sit above the surface, and how wide is it?
Head height is 0.16 to 0.175 in. and head width is 0.443 to 0.472 in. That domed profile sits proud of the surface, so if you need the head flush in a countersunk hole in a cover plate or panel, use a flat head screw instead of this round head.
7) Is 3 inches long enough to go through a box, a spacer, and still get a nut on?
The screws are 3 in. long with full machine threading at 20 TPI, which gives plenty of grip length for stacking a box, standoff or spacer, and a nut on the back side. Keep in mind round head slotted screws thread into a nut or a tapped hole; they are not self-tapping into sheet metal.
8) What size screwdriver fits the slot on these Metallics machine screws?
Drive is a single slot, 0.064 to 0.075 in. wide and 0.082 to 0.109 in. deep. A standard flat blade tip in that thickness range seats fully; a thinner cabinet tip will cam out and chew the slot, especially since stainless galls easily when it binds.
9) Can I get this 1/4-20 round head stainless screw in a different length or pack size?
Metallics builds the SRM series in other diameters, lengths and quantities, and those are available by request. The JSRM100 specifically is the 1/4-20 x 3 in. round head slotted version in a 100 count jar.
How fast can I get the Metallics JSRM100 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 JSRM100 come with a warranty?
Absolutely. The Metallics JSRM100 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 JSRM100?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Metallics JSRM100 from ZenSupply?
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