Metallics JSRM32 1/4-20 x 1 in. Round Head Slotted Machine Screws - 18-8 Stainless - Each

No. The JSRM32 is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. If your contract carries a domestic sourcing clause, this fastener will not satisfy it.

Length on the JSRM32 is 1 inch measured under the round head, since round head screws are measured from under the head rather than overall. Subtract whatever nut and washer stack you are using to get usable grip. The head itself adds 0.16 to 0.175 inch of height above the surface.

18-8 stainless is the standard austenitic grade used for general corrosion resistance, so these hold up in wet and outdoor general-purpose work far better than plated steel. For chloride exposure, coastal or pool chemical environments, 316 stainless is the better choice. Note also that stainless threads gall under speed, so run them in slow and use anti-seize on tight fits.

Tensile is rated 80,000 psi minimum with a hardness of Rockwell B85 to B95, measured to the SAE material standard. That sits below a grade 5 steel fastener, which runs 120,000 psi, so where the load is structural rather than corrosion driven, a plated grade 5 or grade 8 is the stronger pick. The listed stainless tensile figure is an approximation; there is no single performance standard for stainless machine screws.

The SRM series is stocked for electrical, plumbing, heating and air conditioning work: mounting straps, brackets, panel hardware, and anywhere a tapped 1/4-20 hole or a nut is available. The round head is a general-purpose head that sits proud of the surface, which suits bracket and strap work where appearance under the head does not matter.

Yes. Metallics lists other sizes and quantities in the SRM round head slotted line by request; the JSRM32 itself is fixed at 1/4-20 x 1 inch in a 100 count jar.