ASTM A563 Grade A Heavy Hex Nut. Low carbon steel. Zinc Plated. Coarse thead (UNC). Note: WAF stands for width across flats.
A563 Grade DH UN8 Class 2B Structural Heavy Hex Nut Zinc Plating
1 3/4-5 A563-A Heavy Hex Nut H.D.G.
HHNZ-4-ASTM A563 GR.A-Zinc Finish-Heavy Hex Nuts
Finish Hex Nut 18-8 Stainless Steel
300) Heavy Hex Nuts 5/16-18 Zinc Plated Coarse Thread A563 - Lexar
Value Collection - Hex Nut: 3/4-10, A563 Grade DH Steel, Hot
Heavy Hex Nut A194 Gr 2H Plain
A563 Heavy Hex Nuts Structural and Heavy Hex Nuts
320200
Zinc Plated/Galvanized - Grade 8s/10s - M22 - A563m/F10/10s/F8
3/8-16 Heavy Hex Nuts A563 Grade A Coarse
Heavy Hex Nut 1/2-13 Steel Zinc UNC Grade A ~ ASTM A563 Pack 12
ASTM A563 C Nut and SA 563 Grade C Lock/ Hex/ Flange Nuts
2-1/4 -4-1/2 Heavy Hex Nut A563 GR DH Hot-Dip Galv Zinc Coat F2329
F-60402PP3