1/4"-20 x 1/2" Thumb Screw Stainless Steel - Black Knurled Round Plastic Knob - Standard/Coarse Thread Thumbscrew - Length: 0.500" - Proudly Built in USA - Package of (4) 4 sold2026 Keeping your spark plugs in

Keeping your spark plugs in top shape is essential for your car’s operation

Flame retardant and weather resistant

tiny areas and irregular places more effectively with no scrach 2

Three different drawing surfaces to help bring your imagination to life

35 mm) with 1/4-inch (6

1/4"-20 x 1/2" Thumb Screw Stainless Steel - Black Knurled Round Plastic Knob - Standard/Coarse Thread Thumbscrew - Length: 0.500" - Proudly Built in USA - Package of (4) 4 sold2026 Keeping your spark plugs in1 4" 20 x 1 2" Thumb Screw Stainless Steel Black Knurled Round Plastic Knob Standard Coarse Thread Thumbscrew Length: 0. 500" Proudly Built in USA Package of (4) Thumb Screw Specs: Thread Diameter: 0. 250" (1 4") Thread Pitch: 20 (UNC) Screw Length: 0. 500" (1 2") Fully Threaded: Yes Minimum Thread Length: Full Thread Material: 18 8 Stainless Steel Knob Style: Knurled Round Knob Color: Black Knob Diameter: 0. 750" (3 4") Knob Height: 0. 313" (5 16")