Metallics JSRM29 1/4-20 x 3/8 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$192.86
Metallics JSRM29 1/4-20 x 3/8 in. Round Head Slotted Machine Screws - 18-8 Stainless - 100qty

Metallics JSRM29 1/4-20 x 3/8 in. Round Head Slotted Machine Screws - 18-8 Stainless - Each

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Model: JSRM29
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$192.86
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1/4-20 x 3/8 in. Round Head Slotted Machine Screws - 18-8 Stainless - 100qty

  • Features

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

  • 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:
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:
8-Mar
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:
2.15 in
Product Length:
3 in
Product Weight:
0.67 lbs
Product Width:
3 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 JSRM29 – Frequently Asked Questions

1) How many screws come in a jar of Metallics JSRM29 machine screws?
The JSRM29 ships as a jar of 100 screws, and 100 is the order minimum. So the smallest buy is one jar of 1/4-20 x 3/8 in. round head slotted screws, not a loose count.
2) Will a 1/4-20 x 3/8 in. machine screw be long enough for my application?
At 3/8 in. of length under the round head, the JSRM29 is a short screw. It suits thin sheet metal, device straps, box covers and fixture brackets where total grip is roughly 1/4 in. or less, since 1/4-20 threads need several turns of engagement in a tapped hole or nut. If you are stacking material thicker than that, step up to a longer length in the same 1/4-20 thread.
3) Do these 1/4-20 screws thread into a standard 1/4-20 tapped hole or nut?
Yes. The thread is 1/4-20, meaning a 1/4 in. nominal diameter at 20 threads per inch, which is the standard UNC coarse pitch. It mates with any 1/4-20 nut, strut channel nut, or tapped hole of that pitch.
4) Do these Metallics screws qualify for a Buy American or ARRA-funded project?
No. The JSRM29 is not Buy American compliant and not ARRA compliant, with country of origin listed as multiple. If your government, school, or transit project carries domestic sourcing requirements, these will not satisfy them.
5) Is 18-8 stainless the right pick for outdoor or damp electrical work?
18-8 stainless is the austenitic 300-series alloy used for general corrosion resistance, so it holds up far better than plated steel in damp, outdoor, or wash-down locations. It is also non-magnetic in the annealed condition. For chloride-heavy coastal or pool chemical exposure, 316 is the step up. These Metallics screws are built for electrical, plumbing, heating and air conditioning work.
6) How much room does the round head take up on the surface?
The head measures 0.443 to 0.472 in. across and stands 0.16 to 0.175 in. tall. That matters when you are fastening into a recess or behind a cover plate, since a round head sits fully proud of the surface rather than sinking in. If you need the head flush, a flat head countersunk screw is the one to specify instead.
7) How strong are these stainless machine screws?
Tensile strength is rated 80,000 psi minimum with a hardness of Rockwell B85 to B95, against SAE material standards. One caveat worth knowing: there is no single performance standard for stainless machine screws, so the manufacturer offers tensile values for stainless as approximations. For a structural or load-rated connection, use a graded fastener specified for that purpose.
How fast can I get the Metallics JSRM29 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 JSRM29 come with a warranty?
Absolutely. The Metallics JSRM29 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 JSRM29?
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 JSRM29 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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