UNC
UNC Domed Countersunk Square Plow Bolt #3 SAE-5(8.8) B18.9
UNC Domed Countersunk Square Plow Bolt #3 SAE-8(10.9) B18.9
UNC Countersunk Square Plow Bolt SAE-8(10.9) B18.9
UNC Eliptical Countersunk Square Plow Bolt Steel
UNC Countersunk Square Plow Bolt Grade-A(4.6) B18.9
UNC Countersunk Square Plow Bolt SAE-5(8.8) B18.9
UNC Countersunk Nib Bolt SAE-8(10.9) B18.9
BSW Whitworth Countersunk Square Plow Bolt Grade-4.6 BS325