5/16-18 Clamping Thumb Screws with Black Knob Multiple Sizes Industrial Grade 5/16" Thumb Screw Bolts with Black Fluted Round Grip for Clamping 2 and 4 Packs Available Stainless Steel 18-8 5/16-18 (Coarse Thread) Lengths: 1/2" - 3 1/2" Clamping Knob Finger Grip is 1 1/2" Wide for Comfort 3/8" Thick Bolts are 8-18 Stainless Steel, with High Quality Hand Knobs Made in USA Lengths: 5/16 x 1/2", 5/16 x 3/4", 5/16 x 1in, 5/16 x 1 1/4", 5/16 x 1 1/2", 5/16x 2in, 5/16 x 2 1/2" 5/16 x 3" 5/16 x 3 1/2" 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 1/4"-20 Thumb Screws with Gray Wing Knob Multiple lengths Stainless Steel $11.30 1/4"-20 Thumb Screws with Yellow Wing Knob Multiple lengths Stainless Steel $11.30 1/4" Clamping Thumb Screw Set (Pack of 4) for Softwoods Includes Bit Black Knob $17.00 3/8"- 16 Thumb Screw Bolts with Black Tee Wing Knob. Various Sizes. Stainless $13.75 3/8"- 16 Thumb Screw Bolts with Red Tee Wing Knob. Various Sizes. Stainless $13.75 1/4"- 28 Clamping Thumb Screws (Fine Thread) Gray Knob (Set of 4) $12.45 1/4"- 28 Clamping Thumb Screws (Fine Thread) Red Rosette (Set of 4) $12.45 1/4" Service Thumb Screw Multiple Sizes (Set of 2) Black Knurled 1/4-20 $9.25 1/4" Caution Thumb Screw Multiple Sizes (Set of 2) Black Knurled 1/4-20 $9.25 1/4" -20 Clamping Thumb Screw Choose size / color (Set of 4) Knurled Knob $11.30 1/4"-20 Clamping Thumb Screws Multiple Sizes. (Set of 4) Red Knob Stainless $12.00 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 Black Butterfly Tee Wing Knob Stainless 4 Pack $12.89 5/16" x 3 1/2" Thumb Screw Bolts Black Fluted Clamping Knob Stainless Steel $13.59 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 T Bolts Black Plastic Butterfly Clamping Tee Wing Knob 5/16-18 $12.79 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 $13.95 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 $14.59 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 $1 (description exceeds maximum possible length)