1/2-13 High Security Custom Key Penta-Plus Coarse Nut Stainless Steel

1/2-13 High Security Trigroove Coarse Nut Alloy Steel

1/4-20 High Security Custom Key Penta-Plus Coarse Nut Stainless Steel

1/4-20 High Security Trigroove Coarse Nut Alloy Steel

10-24 High Security Custom Key Penta-Plus Coarse Nut Stainless Steel

10-24 High Security Trigroove Coarse Nut Alloy Steel

10-32 High Security Custom Key Penta-Plus Fine Nut Stainless Steel

10-32 High Security Trigroove Fine Nut Alloy Steel

3/8-16 High Security Custom Key Penta-Plus Coarse Nut Stainless Steel

3/8-16 High Security Trigroove Coarse Nut Alloy Steel

5/16-18 High Security Custom Key Penta-Plus Coarse Nut Stainless Steel

5/16-18 High Security Trigroove Coarse Nut Alloy Steel