![Amazon.com: 20-1/4-20 x 2 Inch Long Length Knurled Plastic Head Thumb Screws, US Made : Industrial & Scientific Amazon.com: 20-1/4-20 x 2 Inch Long Length Knurled Plastic Head Thumb Screws, US Made : Industrial & Scientific](https://m.media-amazon.com/images/I/71qAMkU-ENL.jpg)
Amazon.com: 20-1/4-20 x 2 Inch Long Length Knurled Plastic Head Thumb Screws, US Made : Industrial & Scientific
![1/4-20" x 1 1/2" Thumb Screws with Wing Knob Thumbscrews Thumb Screw Butterfly Thumb Screws Thumbscrew (4): Amazon.com: Industrial & Scientific 1/4-20" x 1 1/2" Thumb Screws with Wing Knob Thumbscrews Thumb Screw Butterfly Thumb Screws Thumbscrew (4): Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51yC3ZNCjGL.jpg)
1/4-20" x 1 1/2" Thumb Screws with Wing Knob Thumbscrews Thumb Screw Butterfly Thumb Screws Thumbscrew (4): Amazon.com: Industrial & Scientific
![Electro Hardware - 1/4-20 Knurled Shoulder Grade 2 Steel Thumb Screw - 1-1/8" OAL, 1/2" Head Diam x 1/4" Head Height, Zinc-Plated Finish | Exact Tooling Electro Hardware - 1/4-20 Knurled Shoulder Grade 2 Steel Thumb Screw - 1-1/8" OAL, 1/2" Head Diam x 1/4" Head Height, Zinc-Plated Finish | Exact Tooling](http://cdn.shopify.com/s/files/1/1004/2174/products/0004147-11_cbb59a8b-4e6f-4e98-a3fc-8c9a84e92f11_grande.jpg?v=1566949175)
Electro Hardware - 1/4-20 Knurled Shoulder Grade 2 Steel Thumb Screw - 1-1/8" OAL, 1/2" Head Diam x 1/4" Head Height, Zinc-Plated Finish | Exact Tooling
![928268-9 Thumb Screw: 1/4"-20 Thread Size, Wing, Iron, Zinc Plated, 0.813 in Max Head Ht, 1 in Lg, 25 PK | Imperial Supplies 928268-9 Thumb Screw: 1/4"-20 Thread Size, Wing, Iron, Zinc Plated, 0.813 in Max Head Ht, 1 in Lg, 25 PK | Imperial Supplies](https://www.imperialsupplies.com/ProductImageThumbs400/35/58/PI_Asset_1343558.jpg)
928268-9 Thumb Screw: 1/4"-20 Thread Size, Wing, Iron, Zinc Plated, 0.813 in Max Head Ht, 1 in Lg, 25 PK | Imperial Supplies
![926424 Thumb Screw: 1/4"-20 Thread Size, Wing, Iron, Plain, 0.813 in Max Head Ht, 3/4 in Lg, 25 PK | Imperial Supplies 926424 Thumb Screw: 1/4"-20 Thread Size, Wing, Iron, Plain, 0.813 in Max Head Ht, 3/4 in Lg, 25 PK | Imperial Supplies](https://www.imperialsupplies.com/ProductImageThumbs400/89/39/PI_Asset_1208939.jpg)
926424 Thumb Screw: 1/4"-20 Thread Size, Wing, Iron, Plain, 0.813 in Max Head Ht, 3/4 in Lg, 25 PK | Imperial Supplies
![1/4-20 x 1 1/2 Coarse Thread Thumb Screw Type A With Shoulder Low Carbon Steel Plain Finish | ASMC.net 1/4-20 x 1 1/2 Coarse Thread Thumb Screw Type A With Shoulder Low Carbon Steel Plain Finish | ASMC.net](https://cdn11.bigcommerce.com/s-hlsk6yq0/images/stencil/1280x1280/products/336320/1339654/item-thumb-screw-shoulder-pln__84266.1576015872.jpg?c=2)
1/4-20 x 1 1/2 Coarse Thread Thumb Screw Type A With Shoulder Low Carbon Steel Plain Finish | ASMC.net
![Zoro Select Thumb Screw, 1/4"-20 Thread Size, Plain 18-8 Stainless Steel, 1/ 4 in Head Ht, 3/4 in Lg, 5 PK WFTSSS20 | Zoro Zoro Select Thumb Screw, 1/4"-20 Thread Size, Plain 18-8 Stainless Steel, 1/ 4 in Head Ht, 3/4 in Lg, 5 PK WFTSSS20 | Zoro](https://www.zoro.com/static/cms/product/full/Grainger_g2543125xHERO.jpg)
Zoro Select Thumb Screw, 1/4"-20 Thread Size, Plain 18-8 Stainless Steel, 1/ 4 in Head Ht, 3/4 in Lg, 5 PK WFTSSS20 | Zoro
![5 Pack of 1/4-20 Knurled Shoulder Flat Tip Brass Thumb Screw - 1-1/16" OAL: Amazon.com: Industrial & Scientific 5 Pack of 1/4-20 Knurled Shoulder Flat Tip Brass Thumb Screw - 1-1/16" OAL: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/41e5i3u99AL._AC_.jpg)
5 Pack of 1/4-20 Knurled Shoulder Flat Tip Brass Thumb Screw - 1-1/16" OAL: Amazon.com: Industrial & Scientific
![Electro Hardware - 303 Stainless Steel Thumb Screw: 1/4-20, Knurled Head - 00042085 - MSC Industrial Supply Electro Hardware - 303 Stainless Steel Thumb Screw: 1/4-20, Knurled Head - 00042085 - MSC Industrial Supply](https://cdn.mscdirect.com/global/images/ProductImages/0004208-24.jpg)
Electro Hardware - 303 Stainless Steel Thumb Screw: 1/4-20, Knurled Head - 00042085 - MSC Industrial Supply
![1/4-20" x 1" Thumb Screws with Wing Knob Thumbscrews Thumb Screw Butterfly Thumb Screws Thumbscrew (4): Amazon.com: Industrial & Scientific 1/4-20" x 1" Thumb Screws with Wing Knob Thumbscrews Thumb Screw Butterfly Thumb Screws Thumbscrew (4): Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/31yVW5QTKnL._AC_.jpg)
1/4-20" x 1" Thumb Screws with Wing Knob Thumbscrews Thumb Screw Butterfly Thumb Screws Thumbscrew (4): Amazon.com: Industrial & Scientific
![Morton Machine Works - C-12L14 Steel Thumb Screw: 1/4-20, Knurled Head - 50150689 - MSC Industrial Supply Morton Machine Works - C-12L14 Steel Thumb Screw: 1/4-20, Knurled Head - 50150689 - MSC Industrial Supply](https://cdn.mscdirect.com/global/images/ProductImages/5015071-24.jpg)