3/8-16 x 3-1/2 in. Round Head Slotted Machine Screws - Steel Zinc - 50qty
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 Drive
- 3/8-16 Diameter, '3-1/2" Length
- Steel Zinc Material
Manufacturer Resources
Product Specs
- Minimum Purchase:
- 50 units
- Arra Compliant:
- N
- Buy American Compliant:
- No
- Division:
- Electrical H1
- Drive Type:
- Slotted
- Fastener Head Height:
- 0.237 - 0.256 in.
- Fastener Head Type:
- Round
- Fastener Head Width:
- 0.67 - 0.708 in.
- Fastener Length:
- 3-1⁄2
- Hardness:
- Rockwell B70-B100
- Language Code:
- EN
- Material Standard:
- AISI 1006 - 1022
- Order Minimum Imperial:
- 50
- Order Minimum Uom Imperial:
- EA
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Recess Penetration Gaging Depth:
- 0.182 - 0.208
- Slot Depth:
- 0.117 - 0.155
- Slot Width:
- 0.081 - 0.094
- Sub Division:
- Electrical-E H2
- Tensile Strength:
- 60000 psi minimum
- Thread Per Inch:
- 16
- 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 JRM67SLT – Frequently Asked Questions
1) What thread size and length are the Metallics JRM67SLT machine screws?
The JRM67SLT is a 3/8-16 machine screw, 3-1/2 inches long, with 16 threads per inch. That is a coarse 3/8 inch machine thread, so it mates with a 3/8-16 tapped hole or nut, not with a 3/8-24 fine thread.
2) Will these screws satisfy a Buy American or ARRA requirement on a government job?
No. The JRM67SLT is not Buy American compliant and not ARRA compliant, and country of origin is listed as multiple. On a federally funded project with domestic sourcing language, these will not pass, so you need a domestically produced fastener instead.
3) What is the tensile strength of the Metallics JRM steel zinc machine screws?
60,000 psi minimum tensile, with hardness of Rockwell B70 to B100, made from AISI 1006 to 1022 low carbon steel. That is standard low carbon machine screw strength, so it is fine for enclosures, panels, strut, and general fastening, but it is not a substitute for a graded hex cap screw in a structural or high load joint.
4) Are zinc plated steel machine screws okay for outdoor or damp locations?
The JRM67SLT is zinc plated carbon steel, which is a mild corrosion finish meant for dry indoor use. In wet, exterior, coastal, or washdown conditions the plating gives up and the steel rusts, so specify a stainless machine screw of the same 3/8-16 x 3-1/2 in. size for those locations.
5) How are the Metallics JRM67SLT screws packaged and what is the minimum order?
They ship in a jar, with a 50 each minimum. So the smallest buy is 50 screws, not a single piece, which is how most MRO and electrical shops stock a 3/8-16 size.
6) Is 3-1/2 inches too long if I only need to pass through a thin panel?
Probably, yes. At 3-1/2 inches the JRM67SLT is sized for stacked assemblies, standoffs, or deep spacer runs, and on a thin panel you will have several inches of thread hanging past the nut. For a single sheet metal panel, order a shorter 3/8-16 machine screw rather than cutting these down.
7) What is the difference between a machine screw like this and a 3/8-16 bolt?
The JRM67SLT is a machine screw: a fully threaded 3/8-16 fastener with a slotted round head, driven with a screwdriver into a tapped hole or run through with a nut. A hex bolt of the same thread is driven with a wrench and is usually specified by grade for load bearing. Pick the machine screw when you are fastening into threaded sheet metal, a device box, a panel, or a strut nut and want a low profile driven head.
How fast can I get the Metallics JRM67SLT 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 JRM67SLT come with a warranty?
Absolutely. The Metallics JRM67SLT 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 JRM67SLT?
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