https://www.albanycountyfasteners.com/hex-jam-nuts-zinc-plated-steel-1-8-unc-1102-126-0182/
Hex Jam Nuts, Zinc Plated Steel, 1"-8 UNC
Comparable to hex finish nuts but thinner A Hex Jam Nut is also known as a Check Nut, Thin Hex Nut, or Thin Nut Available in UNC and UNF sizes Used for...
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https://shop.stafast.com/hnj1213ss
Stainless Steel Hex Jam Nuts - STAFAST eCommerce
Stainless Steel Hex Jam Nuts
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https://shop.stafast.com/hnj5624
Finished Hex Jam Nuts - STAFAST eCommerce
Finished Hex Jam Nuts
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https://www.aspenfasteners.com/1-4-28-thin-hex-jam-nuts-steel-plain/
Hex Thin Jam Nuts 1/4"-28 Hex Drive Steel NU135
Buy Online from Aspen Fasteners | Free Shipping | 1/4"-28 Hex Jam Thin Nuts, Steel
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https://www.globalfastener.com/standards/detail.php?sid=MjI4NDg=
ASME B 18.2.2 (T5) - 2022Hex Nuts and Hex Jam Nuts [Table 5] (ASTM A563 / F594 / F467)
https://www.tacomascrew.com/Catalog/fasteners/nuts/jam-nuts/231-216-2
Tacoma Screw Products | M16-1.5 Class 4 Metric Hex Jam Nuts Zinc, Fine DIN 439 50/PKG
M16-1.5 Class 4 Metric Hex Jam Nuts Zinc, Fine DIN 439 50/PKG