shweapy sling swivel studs wood screw studs,6pcs gun sling mounting kit (3) shweapy material:carbon steel <br> details: <br> 1/2" for the forend <br> 3/4" for the buttstock<br> 7/8" machine screw and nut<br> <br> package include :<br> <br> 6 pcs swivel screws