5/16" x 3 1/2" Thumb Screws with Hard Round Fluted Plastic Clamping Knob 2 / 4 / 8 Packs Available Bolts are 8-18 Stainless Steel, with High Quality Knobs Made in USA Standard Coarse Thread 5/16"-18 Length: 3 1/2" Thermoplastic Hand Knob is 1 1/2" wide x 3/8" thick Stainless Steel 18-8 These stainless steel clamping bolts can be used to secure material without using a wrench. They can also be used for: Thumb screws offer a hand-adjustment feature, which allows for simple action to fasten, tighten, loosen, or remove the screws. However, they are also ideal for applications in which space is too restricted to allow enough clearance for the use of tools to fasten the screw. Designers might choose thumbscrews for household, electronic and other consumer products, not just for the ease of fastening but also to avoid the risk of over-tightening. They are particularly beneficial for assemblies that require repeated removal and reinstallation. When used for removal-and-reinstallation applications, such as safety covers or access panels, these bolts can reduce the amount of time required for maintenance or inspection. Their hand-adjustment design also reduces the incidence of broken or stripped fasteners that might occur with frequent removal and reinstallation. These can be used to secure material without using a wrench. They can also be used for: Panels Vices Clamps Router Table Camera Tripod Power Tools Woodworking Jigs Tile Saws Chop Saws Microphone Stands Visit our store for additional thumb screw options 100% Customer Satisfaction Rating Fast and Free Shipping Made in USA Shipping Free Shipping via USPS Ground Advantage, or Priority Mail on large or heavy orders. Orders are generally shipped same day or next on weekdays. Returns We accept return within 30 days from the receipt of the item for refund. Similar items 5/16" x 1" Thumb Screw T Bolts Red Butterfly Tee Wing Knob Stainless 4 Pack $12.89 5/16" x 1 1/4" Thumb Screw Bolts Black Knurled Clamping Knob Stainless 2 / 4 / 8 $11.89 5/16" Thumb Screw Bolts Black Tee Wing Knob Stainless Steel T Bolts 4 Pack $12.79 5/16" x 1" Thumb Screw Bolts Black Fluted 6 Point Clamping Knob Stainless Steel $11.95 5/16" Thumb Screw Bolts Red Round Plastic Grip Clamping Knob Hex Head 4 Pack $14.49 5/16" x 1 1/4" Thumb Screw Bolts Black Fluted 6 Point Clamping Knob Stainless $14.95 5/16" x 3/4" Thumb Screw Bolts Black Round Clamping Knob Stainless Steel 4 Pack $14.39 5/16" x 1" Thumb Screw T Bolts Black Butterfly Tee Wing Knob Stainless 4 Pack $12.89 5/16" Thumb Screw T Bolts Gray Butterfly Clamping Knob Tee Wing Stainless Steel $12.79 5/16" Thumb Screw T Bolts with Red Butterfly Tee Wing Clamping Knob Stainless $12.79 5/16" Thumb Screw Bolts Black Round Plastic Clamping Knob Hex Head Stainless $14.49 5/16" Thumb Screw T Bolts Black Plastic Butterfly Clamping Tee Wing Knob 5/16-18 $12.79 25mm Wide Base x 20mm Tall Round Rubber Feet Bumpers for Equipment and Furniture $11.89 (description exceeds maximum possible length)