Knob with bolt--ergonomic design of this knob set allows for easy adjustment and tightening with maximum control and agility,screw knobs Star shaped knobs kit--this knob are special shape design, great for comfortable hand grip,threaded knob Knobs kit washer--insert the bolt into the t-slot head down with the screw facing upwards, place the washer on the threaded bolt facing upwards, thread the t knob onto the bolt, then lock the entire unit in place on your t-track,bolt with knob knobs--these woodworking jig knobs can easily be utilized to an assortment of , including your miter gauge or t-track fences, stop blocks, boards and so much more,bolt and washers Thread clamping screw--surface nice finish for a comfortable grip,t-track knobs ASIN B0DK9F41Y1 Color Black Brand Name COLLBATH Item Weight 6.08 ounces Manufacturer COLLBATH Model Number A2E17OH06CO179OIYMGTL Material Type Iron, Plastic Item Type Name hardwarehandle Included Components Knobs Item Dimensions L x W 1.97 L x 1.38 W Manufacturer Part Number A2E17OH06CO179OIYMGTL