80/20® 5/16-18 x .500 Socket Head Cap Screw w/Slide-In Economy T-Nut, Black Zinc

3878 is comprised of: M8 x 16.00mm Socket Head Cap Screw (SHCS) M8 Roll-In T-Nut with Flex Handle .335" ID Washer

3479 is comprised of: 1/4-20 x .750" Button Head Socket Cap Screw (BHSCS) 10 Series 1/4-20 Standard Slide-in T-Nut

3498 is comprised of: 1/4-20 x .625" Socket Head Cap Screw (SHCS) 1/4-20 Roll-In T-Nut with Flex Handle .286" ID Washer

Features: 1/4-20 x .750" Button Head Socket Cap Screw (BHSCS) 1/4-20 Roll-In T-Nut with Flex Handle 0.286" ID Washer

80/20 3411 Flat Head Socket Cap Screw, 3/4"L Flat Head Socket Cap Screw, FHSCS.