blue, 6-40 plug screws (black oxide 416 stainless steel) 1 dz. blue, 6-48 positive stop, plug screws 1 dz. Kit contains 1 dozen S/S, 6-48 plug screws 1 dozen S/S, 6-48 positive stop, plug screws 2 dz. Mfg: Brownells SPECS: Available in blue and stainless steel (S/S). the weapons dealer in the market has like over 1k rounds to sell. 308 is a longer round and thus the need for two different ammo types. Kit also includes pair of chrome-plated, flat jaw tweezers to easily pick up the right screw, and our handy Checker/Shortener Jig makes grinding screws to the right length fast and easy. 308 is extremely close but not identical to 7.62×51.
Positive stop screws have a rounded top that blends right in with most barrel contours without grinding. Can be ground flush and blued or polished, and most times it will be tough to tell if a hole was ever there. Fast and easy way to fill holes on barrels and firearm receivers. Plug screws are a real time saver around the shop. Handy, money saving assortment of positive stop and standard plug screws in the two most popular sizes. Brownells Plug Screw Kit - Plug Screw Refill Pak, 8-40, Ss, 1 Dozen