Shop › GROVTEC SWIVEL STUDS 1 7/8" AND 3/4" GROVTEC SWIVEL STUDS 1 7/8" AND 3/4" $5.19 GrovTec GTHM47, Swivel Studs, Black Oxide Finish, Black, Includes (1) 7/8" Machine Screw Stud and Nut, (1) 3/4" Wood Screw Stud, (2) Spacers GTHM47 Quantity: Add To Cart Added! GrovTec GTHM47, Swivel Studs, Black Oxide Finish, Black, Includes (1) 7/8" Machine Screw Stud and Nut, (1) 3/4" Wood Screw Stud, (2) Spacers GTHM47