Metallics JRM110 1/4-20 x 1-3/...
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Metallics JRM110 1/4-20 x 1-3/4 in. Round Head Combo Machine Screws - Steel Zinc - 100qty

Metallics JRM110 1/4-20 x 1-3/4 in. Round Head Combo Machine Screws - Steel Zinc - Each

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Model: JRM110
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1/4-20 x 1-3/4 in. Round Head Combo Machine Screws - Steel Zinc - 100qty

  • Additional Notes

    • In 1985, Metallics was the first fastener company in America to offer a full line of Combo’s! | 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

    • Round head with slotted and Phillips Drive
    • 1/4-20 Diameter, 1-3/4" Length
    • Steel Zinc Material

Manufacturer Resources

Product Specs

Minimum Purchase:
100 units
Arra Compliant:
C
Buy American Compliant:
C
Division:
Electrical H1
Drive Type:
Slotted/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:
1/3/04
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-Round_Head_Machine_Screw.pdf
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:
4.57 in
Product Length:
3 in
Product Weight:
2.35 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:
60000 psi minimum
Thread Per Inch:
20
Department:
Electrical
Product Subgroup:
Screws
Product Type:
Machine Screw
Type2:
Machine Screw
Series:
JRM
Product Finish:
Zinc
Product Details:
Machine Screw
Product Material:
Steel Zinc

Metallics JRM110 – Frequently Asked Questions

1) What driver do I need for the Metallics JRM110 combo machine screw?
Either a flat blade or a #3 Phillips. The JRM110 has a combination head, slotted and Phillips in the same recess, so one screw takes either driver. The slot runs 0.064 to 0.075 inch wide and 0.082 to 0.109 inch deep, and the Phillips recess is 0.255 to 0.268 inch across. For crews carrying mixed drivers on a job, the combo head means nobody is stuck without the right bit.
2) Will a 1/4-20 round head machine screw thread into standard electrical box and strut hardware?
The JRM110 is cut 1/4-20, which is 20 threads per inch on a 1/4 inch diameter, the common machine thread on 1/4-20 strut nuts, spring nuts and tapped enclosure hardware. It is a machine screw, so it needs a tapped hole or a nut, not a pilot hole in wood or sheet metal. Length is 1-3/4 inches, so you need that much grip plus nut engagement or the screw will bottom out short.
3) Is a zinc plated steel machine screw okay for outdoor or damp locations?
The JRM110 is steel with a zinc finish, which is a general purpose indoor and dry location plating. Zinc gives sacrificial corrosion protection but it is not stainless, so for wet, coastal or washdown areas, or anywhere a corrosive atmosphere is in play, specify a stainless 1/4-20 round head combo screw instead of the zinc version.
4) How strong is the Metallics JRM110, and what steel is it made from?
Minimum tensile strength is 60,000 psi, with hardness in the Rockwell B70 to B100 range. The steel is to AISI 1006 to 1022, a low carbon range. That is standard commercial machine screw strength, fine for mounting devices, brackets, covers and strut work, but it is not a Grade 5 or Grade 8 bolt substitute for a structural or high load connection.
5) Do I have to buy the JRM110 screws by the box, or can I get a small quantity?
They ship in a jar of 100 pieces, and 100 count is the order minimum for the JRM110. So the smallest buy is one 100 piece jar. The jar packaging holds up better than a bag on a service truck or a parts shelf, which is why MRO and electrical stockrooms tend to standardize on it.
6) Do these Metallics screws meet Buy American or ARRA requirements on a government job?
The JRM110 carries Buy American and ARRA compliance flags of C in its spec data, while country of origin is listed as China. On a federally funded project where domestic sourcing is enforced, confirm which compliance basis your specification requires before you commit this part, because origin and the compliance flag are not saying the same thing.
7) What does a jar of 100 Metallics JRM110 screws weigh for shipping?
A jar of 100 weighs 2.35 lbs. Useful if you are building a stock order of several sizes and watching pallet or parcel weight.
How fast can I get the Metallics JRM110 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 JRM110 come with a warranty?
Absolutely. The Metallics JRM110 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 JRM110?
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 JRM110 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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