Made in U.S.A.

Machine screws nuts manufactured domestically by Amerifast Corp. and MRL Mfg.

All nuts are made of 304 Stainless and are stamped with Robbins "R" trademark and "304AN"; AN stands for annealed. Chemicals and physicals showing conformance to MS specifications are available on all items.
  • Material to procurement spec FF-N-836; Fed Std 66; QQ-S-763.
  • Passivated to QQ-P-35.
  • Dimensions, proof load, hardness, threads to MS specs, procurement spec FF-N-836; Fed Std H28/2; Fed Std H28/20 system 2
  • more
Unit of Measure

Manufacturer

Manufacturer

Robbins Manufacturing Co., Inc.

Specifications

Product

Finished Nut

Thread Size

1/4-20

Stamping

-1

Material

304 Stainless Steel

Codes and Standards

Codes and Standards

MS 51971
Use trailing wildcard (*) for broader results.