Thumb Screws

1537 products

Thumb Screws

Thumb Screws are user-friendly fasteners designed for hand-tightening without tools, featuring winged or knurled heads for easy grip and operation. At Skdin, we offer a comprehensive range of high-quality Thumb Screws in various styles, materials, and sizes for applications requiring frequent adjustments or tool-free operation. These convenient fasteners are ideal for access panels, electronic enclosures, laboratory equipment, and any application where quick assembly and disassembly is beneficial. Our thumb screws are available with different thread types, head styles, and materials to suit various requirements. Explore our selection to find the perfect thumb screws for your tool-free fastening needs.

System of Measurement
Inch Metric
Specifications Met
DIN 316 DIN 464 DIN 653
Thread Size
4-40 4-48 6-32 6-48 8-32 8-40 10-24 10-32 3/16"-100 1/4"-20 1/4"-28 1/4"-80 5/16"-18 5/16"-24 3/8"-16 1/2"-13 5/8"-11 M2 M2.5 M3 M3.5 M4 M5 M6 M8 M10 M12
Length
3/16" 7/32" 1/4" 9/32" 5/16" 3/8" 13/32" 7/16" 1/2" 17/32" 9/16" 5/8" 21/32" 3/4" 25/32" 7/8" 29/32" 1" 1 1/8" 1 1/4" 1 5/16" 1 3/8" 1 1/2" 1 5/8" 1 3/4" 2" 2 1/16" 2 1/4" 2 5/16" 2 1/2" 2 9/16" 2 3/4" 2 13/16" 3" 3 1/16" 3 1/2" 3 9/16" 3 13/16" 4" 4 5/16" 4 9/16" 5 1/16" 5 5/16" 4 mm 5 mm 6 mm 8 mm 9 mm 10 mm 11 mm 12 mm 13 mm 14 mm 15 mm 16 mm 18 mm 19 mm 20 mm 24 mm 25 mm 26 mm 30 mm 31 mm 32 mm 34 mm 35 mm 38 mm 40 mm 41 mm 44.5 mm 50 mm 51 mm 57 mm 60 mm 63.5 mm 76 mm 80 mm
Material
18-8 Stainless Steel 2011 Aluminum 316 Stainless Steel 6061 Aluminum Acetal Plastic Black-Oxide Steel Brass Glass-Filled Nylon Plastic Nylon Plastic Steel Zinc-Plated Cast Iron Zinc-Plated Iron Zinc-Plated Steel
Drive Style
External Hex Hex Slotted
Threading
Fully Threaded Partially Threaded
Head Diameter
3/16" 0.25" 19/64" 5/16" 21/64" 11/32" 23/64" 3/8" 25/64" 0.4" 13/32" 27/64" 7/16" 29/64" 31/64" 1/2" 0.53" 35/64" 9/16" 37/64" 39/64" 0.61" 5/8" 41/64" 0.68" 11/16" 3/4" 0.875" 1" 1 1/8" 1 1/4" 1 3/8" 1 1/2" 4.8 mm 6 mm 7 mm 7.5 mm 8 mm 9.5 mm 9.6 mm 10 mm 11 mm 11.5 mm 12 mm 12.7 mm 13 mm 14.5 mm 15.9 mm 16 mm 16.5 mm 19 mm 19.5 mm 20 mm 22.2 mm 23 mm 24 mm 25 mm 26 mm 29 mm 30 mm 32 mm 36 mm 38 mm
Head Height
3/32" 1/8" 9/64" 5/32" 11/64" 3/16" 7/32" 1/4" 9/32" 19/64" 5/16" 21/64" 11/32" 23/64" 3/8" 25/64" 13/32" 7/16" 29/64" 15/32" 1/2" 35/64" 9/16" 19/32" 39/64" 5/8" 43/64" 11/16" 23/32" 3/4" 13/16" 7/8" 15/16" 1" 1 1/8" 1 3/16" 1 1/4" 1 1/2" 2.5 mm 3 mm 3.5 mm 4 mm 4.4 mm 5 mm 5.5 mm 6 mm 6.5 mm 7 mm 7.6 mm 7.8 mm 7.9 mm 8 mm 8.5 mm 8.6 mm 9.5 mm 9.8 mm 10 mm 10.5 mm 11 mm 11.5 mm 12.2 mm 12.7 mm 13 mm 14 mm 14.3 mm 15.5 mm 16 mm 17 mm 17.5 mm 18 mm 19 mm 20 mm 21 mm 22 mm 24 mm 25 mm 33 mm 38 mm 40 mm
Thread Pitch
0.4 mm 0.45 mm 0.5 mm 0.6 mm 0.7 mm 0.8 mm 1 mm 1.25 mm 1.5 mm 1.75 mm
Thread Diameter
0.112" 0.138" 0.164" 0.188" 0.19" 0.25" 0.312" 0.313" 0.375" 0.5" 0.625"
Thread Type
Metric UNC UNF UNS
Drive Size
1/4" 3/16" 3/32" 5/32" 7/64" 9/64"
Tensile Strength
11000 psi 13000 psi 18000 psi 40000 psi 50000 psi 55000 psi 60000 psi 70000 psi 80000 psi 90000 psi 180000 psi
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Part Number Thread Size Length Threading Thread Direction Thread Diameter Thread Type Thread Fit Head Height Head Diameter Material Tensile Strength Hardness
0794FA00028 5/16"-18 1" Fully Threaded Right Hand 0.313" UNC Class 2A 3/4" 5/8" Zinc-Plated Iron - Not Rated
0802FA00023 5/16"-18 1" Fully Threaded Right Hand 0.313" UNC Class 2A 3/4" - 18-8 Stainless Steel - Not Rated
0801FA00023 5/16"-18 1" Fully Threaded Right Hand 0.313" UNC Class 2A 3/4" - Steel 40000 psi Rockwell B55
0801FA00061 5/16"-18 1" Fully Threaded Right Hand 0.313" UNC Class 2A 3/4" - Zinc-Plated Steel 40000 psi Rockwell B55
0773FA00055 5/16"-18 1" Fully Threaded Right Hand 0.313" UNC Class 3A 13/32" 1" 18-8 Stainless Steel - Not Rated
0777FA00022 5/16"-18 1" Fully Threaded Right Hand 0.313" UNC Class 3A 13/32" 1 1/2" 18-8 Stainless Steel - Not Rated
0775FA00025 5/16"-18 1" Fully Threaded Right Hand 0.313" UNC Class 3A 13/32" - 18-8 Stainless Steel - Not Rated
0793FA00010 5/16"-18 1" Fully Threaded Right Hand - UNC Class 2A 23/32" 5/8" 18-8 Stainless Steel - Not Rated
0781FA00011 5/16"-18 1" Partially Threaded Right Hand 0.312" UNC Class 2A 3/8" 1 1/8" 18-8 Stainless Steel 80000 psi Rockwell B83
0755FA00040 5/16"-18 1" Partially Threaded Right Hand 0.313" UNC Class 2A 1/4" 3/4" 18-8 Stainless Steel 80000 psi Rockwell B83
0754FA00038 5/16"-18 1" Partially Threaded Right Hand 0.313" UNC Class 2A 1/4" 3/4" 18-8 Stainless Steel 80000 psi Rockwell B83
0782FA00011 5/16"-18 1" Partially Threaded Right Hand 0.313" UNC Class 2A 3/8" 1 1/8" Black-Oxide Steel 70000 psi Rockwell B84
0776FA00049 5/16"-18 1 1/8" Fully Threaded Right Hand 0.313" UNC Class 3A 13/32" 1" 18-8 Stainless Steel - Not Rated
0792FA00015 5/16"-18 1 1/4" Fully Threaded Right Hand 0.313" UNC Class 2A 1/4" 3/4" Nylon Plastic 13000 psi Not Rated
0764FA00037 5/16"-18 1 1/4" Fully Threaded Right Hand 0.313" UNC Class 2A 1/4" 1 1/4" 18-8 Stainless Steel 80000 psi Rockwell B83
0765FA00035 5/16"-18 1 1/4" Fully Threaded Right Hand 0.313" UNC Class 2A 1/4" 1 1/4" Black-Oxide Steel 70000 psi Rockwell B84
0760FA00061 5/16"-18 1 1/4" Fully Threaded Right Hand 0.313" UNC Class 2A 9/32" 41/64" 18-8 Stainless Steel 80000 psi Rockwell B85
0771FA00013 5/16"-18 1 1/4" Fully Threaded Right Hand 0.313" UNC Class 2A 9/16" 3/4" 18-8 Stainless Steel 80000 psi Rockwell B83
0798FA00022 5/16"-18 1 1/4" Fully Threaded Right Hand 0.313" UNC Class 2A 11/16" - 18-8 Stainless Steel - Not Rated
0796FA00027 5/16"-18 1 1/4" Fully Threaded Right Hand 0.313" UNC Class 2A 11/16" - Steel 40000 psi Rockwell B55
0796FA00072 5/16"-18 1 1/4" Fully Threaded Right Hand 0.313" UNC Class 2A 11/16" - Zinc-Plated Steel 40000 psi Rockwell B55
0773FA00056 5/16"-18 1 1/4" Fully Threaded Right Hand 0.313" UNC Class 3A 13/32" 1" 18-8 Stainless Steel - Not Rated
0777FA00023 5/16"-18 1 1/4" Fully Threaded Right Hand 0.313" UNC Class 3A 13/32" 1 1/2" 18-8 Stainless Steel - Not Rated
0775FA00026 5/16"-18 1 1/4" Fully Threaded Right Hand 0.313" UNC Class 3A 13/32" - 18-8 Stainless Steel - Not Rated
0785FA00010 5/16"-18 1 5/16" Fully Threaded Right Hand 0.313" UNC Class 2A 7/8" - Black-Oxide Steel 180000 psi Rockwell C40
0776FA00050 5/16"-18 1 3/8" Fully Threaded Right Hand 0.313" UNC Class 3A 13/32" 1" 18-8 Stainless Steel - Not Rated
0786FA00003 5/16"-18 1 1/2" Fully Threaded Right Hand 0.312" UNC Class 2A 7/16" 1 1/8" Black-Oxide Steel 80000 psi Rockwell B85
0789FA00026 5/16"-18 1 1/2" Fully Threaded Right Hand 0.313" UNC Class 2A 11/64" 39/64" Nylon Plastic 11000 psi Not Rated
0764FA00038 5/16"-18 1 1/2" Fully Threaded Right Hand 0.313" UNC Class 2A 1/4" 1 1/4" 18-8 Stainless Steel 80000 psi Rockwell B83
0765FA00036 5/16"-18 1 1/2" Fully Threaded Right Hand 0.313" UNC Class 2A 1/4" 1 1/4" Black-Oxide Steel 70000 psi Rockwell B84
0787FA00003 5/16"-18 1 1/2" Fully Threaded Right Hand 0.313" UNC Class 2A 3/8" 1 1/8" Black-Oxide Steel 70000 psi Not Rated
0768FA00045 5/16"-18 1 1/2" Fully Threaded Right Hand 0.313" UNC Class 2A 5/8" 3/8" 18-8 Stainless Steel 80000 psi Rockwell B83
0769FA00021 5/16"-18 1 1/2" Fully Threaded Right Hand 0.313" UNC Class 2A 5/8" 3/8" 18-8 Stainless Steel 80000 psi Rockwell B83
0798FA00023 5/16"-18 1 1/2" Fully Threaded Right Hand 0.313" UNC Class 2A 11/16" - 18-8 Stainless Steel - Not Rated
0800FA00014 5/16"-18 1 1/2" Fully Threaded Right Hand 0.313" UNC Class 2A 11/16" - Brass 50000 psi Rockwell B40
0796FA00028 5/16"-18 1 1/2" Fully Threaded Right Hand 0.313" UNC Class 2A 11/16" - Steel 40000 psi Rockwell B55
0796FA00073 5/16"-18 1 1/2" Fully Threaded Right Hand 0.313" UNC Class 2A 11/16" - Zinc-Plated Steel 40000 psi Rockwell B55
0794FA00029 5/16"-18 1 1/2" Fully Threaded Right Hand 0.313" UNC Class 2A 3/4" 5/8" Zinc-Plated Iron - Not Rated
0802FA00024 5/16"-18 1 1/2" Fully Threaded Right Hand 0.313" UNC Class 2A 3/4" - 18-8 Stainless Steel - Not Rated
0801FA00024 5/16"-18 1 1/2" Fully Threaded Right Hand 0.313" UNC Class 2A 3/4" - Steel 40000 psi Rockwell B55
0801FA00062 5/16"-18 1 1/2" Fully Threaded Right Hand 0.313" UNC Class 2A 3/4" - Zinc-Plated Steel 40000 psi Rockwell B55
0773FA00057 5/16"-18 1 1/2" Fully Threaded Right Hand 0.313" UNC Class 3A 13/32" 1" 18-8 Stainless Steel - Not Rated
0777FA00024 5/16"-18 1 1/2" Fully Threaded Right Hand 0.313" UNC Class 3A 13/32" 1 1/2" 18-8 Stainless Steel - Not Rated
0775FA00027 5/16"-18 1 1/2" Fully Threaded Right Hand 0.313" UNC Class 3A 13/32" - 18-8 Stainless Steel - Not Rated
0793FA00011 5/16"-18 1 1/2" Fully Threaded Right Hand - UNC Class 2A 23/32" 5/8" 18-8 Stainless Steel - Not Rated
0781FA00012 5/16"-18 1 1/2" Partially Threaded Right Hand 0.312" UNC Class 2A 3/8" 1 1/8" 18-8 Stainless Steel 80000 psi Rockwell B83
0755FA00041 5/16"-18 1 1/2" Partially Threaded Right Hand 0.313" UNC Class 2A 1/4" 3/4" 18-8 Stainless Steel 80000 psi Rockwell B83
0754FA00039 5/16"-18 1 1/2" Partially Threaded Right Hand 0.313" UNC Class 2A 1/4" 3/4" 18-8 Stainless Steel 80000 psi Rockwell B83
0782FA00012 5/16"-18 1 1/2" Partially Threaded Right Hand 0.313" UNC Class 2A 3/8" 1 1/8" Black-Oxide Steel - Not Rated
0753FA00006 5/16"-18 1 1/2" Partially Threaded Right Hand 0.313" UNC Class 2A 3/4" - Black-Oxide Steel - Not Rated
0758FA00013 5/16"-18 1 3/4" Fully Threaded Right Hand 0.312" UNC Class 2A 1/4" 3/4" Black-Oxide Steel 70000 psi Rockwell B84
0784FA00011 5/16"-18 1 3/4" Fully Threaded Right Hand 0.313" UNC Class 2A 7/8" - Black-Oxide Steel 180000 psi Rockwell C40
0781FA00013 5/16"-18 1 3/4" Partially Threaded Right Hand 0.312" UNC Class 2A 3/8" 1 1/8" 18-8 Stainless Steel 80000 psi Rockwell B83
0755FA00042 5/16"-18 1 3/4" Partially Threaded Right Hand 0.313" UNC Class 2A 1/4" 3/4" 18-8 Stainless Steel 80000 psi Rockwell B83
0754FA00040 5/16"-18 1 3/4" Partially Threaded Right Hand 0.313" UNC Class 2A 1/4" 3/4" 18-8 Stainless Steel 80000 psi Rockwell B83
0789FA00027 5/16"-18 2" Fully Threaded Right Hand 0.313" UNC Class 2A 11/64" 39/64" Nylon Plastic 11000 psi Not Rated
0787FA00004 5/16"-18 2" Fully Threaded Right Hand 0.313" UNC Class 2A 3/8" 1 1/8" Black-Oxide Steel 70000 psi Not Rated
0786FA00004 5/16"-18 2" Fully Threaded Right Hand 0.313" UNC Class 2A 7/16" 1 1/8" Black-Oxide Steel 80000 psi Rockwell B85
0798FA00024 5/16"-18 2" Fully Threaded Right Hand 0.313" UNC Class 2A 11/16" - 18-8 Stainless Steel - Not Rated
0800FA00015 5/16"-18 2" Fully Threaded Right Hand 0.313" UNC Class 2A 11/16" - Brass 50000 psi Rockwell B40
0796FA00029 5/16"-18 2" Fully Threaded Right Hand 0.313" UNC Class 2A 11/16" - Steel 40000 psi Rockwell B55
0796FA00074 5/16"-18 2" Fully Threaded Right Hand 0.313" UNC Class 2A 11/16" - Zinc-Plated Steel 40000 psi Rockwell B55
0794FA00030 5/16"-18 2" Fully Threaded Right Hand 0.313" UNC Class 2A 3/4" 5/8" Zinc-Plated Iron - Not Rated
0801FA00025 5/16"-18 2" Fully Threaded Right Hand 0.313" UNC Class 2A 3/4" - Steel 40000 psi Rockwell B55
0801FA00063 5/16"-18 2" Fully Threaded Right Hand 0.313" UNC Class 2A 3/4" - Zinc-Plated Steel 40000 psi Rockwell B55
0793FA00012 5/16"-18 2" Fully Threaded Right Hand - UNC Class 2A 23/32" 5/8" 18-8 Stainless Steel - Not Rated
0782FA00013 5/16"-18 2" Partially Threaded Right Hand 0.313" UNC Class 2A 3/8" 1 1/8" Black-Oxide Steel 180000 psi Rockwell C40
0753FA00007 5/16"-18 2" Partially Threaded Right Hand 0.313" UNC Class 2A 3/4" - Black-Oxide Steel 70000 psi Rockwell B84
0784FA00002 5/16"-18 2" Partially Threaded Right Hand 0.313" UNC Class 2A 7/8" - Black-Oxide Steel 70000 psi Rockwell C40
0785FA00011 5/16"-18 2 1/16" Fully Threaded Right Hand 0.313" UNC Class 2A 7/8" - Black-Oxide Steel 180000 psi Rockwell C40
0758FA00014 5/16"-18 2 1/4" Fully Threaded Right Hand 0.312" UNC Class 2A 1/4" 3/4" Black-Oxide Steel 70000 psi Rockwell B84
0755FA00043 5/16"-18 2 1/4" Partially Threaded Right Hand 0.313" UNC Class 2A 1/4" 3/4" 18-8 Stainless Steel 80000 psi Rockwell B83
0754FA00041 5/16"-18 2 1/4" Partially Threaded Right Hand 0.313" UNC Class 2A 1/4" 3/4" 18-8 Stainless Steel 80000 psi Rockwell B83
0781FA00014 5/16"-18 2 1/4" Partially Threaded Right Hand 0.313" UNC Class 2A 3/8" 1 1/8" 18-8 Stainless Steel 80000 psi Rockwell B83
0787FA00005 5/16"-18 2 1/2" Fully Threaded Right Hand 0.313" UNC Class 2A 3/8" 1 1/8" Black-Oxide Steel 70000 psi Not Rated
0786FA00005 5/16"-18 2 1/2" Fully Threaded Right Hand 0.313" UNC Class 2A 7/16" 1 1/8" Black-Oxide Steel 80000 psi Rockwell B85
0794FA00031 5/16"-18 2 1/2" Fully Threaded Right Hand 0.313" UNC Class 2A 3/4" 5/8" Zinc-Plated Iron - Not Rated
0801FA00026 5/16"-18 2 1/2" Fully Threaded Right Hand 0.313" UNC Class 2A 3/4" - Steel 40000 psi Rockwell B55
0784FA00012 5/16"-18 2 1/2" Fully Threaded Right Hand 0.313" UNC Class 2A 7/8" - Black-Oxide Steel 180000 psi Rockwell C40
0782FA00014 5/16"-18 2 1/2" Partially Threaded Right Hand 0.313" UNC Class 2A 3/8" 1 1/8" Black-Oxide Steel 180000 psi Rockwell C40
0781FA00015 5/16"-18 2 3/4" Partially Threaded Right Hand 0.313" UNC Class 2A 3/8" 1 1/8" 18-8 Stainless Steel 80000 psi Rockwell B83
0785FA00012 5/16"-18 2 13/16" Fully Threaded Right Hand 0.313" UNC Class 2A 7/8" - Black-Oxide Steel 180000 psi Rockwell C40
0758FA00015 5/16"-18 3" Fully Threaded Right Hand 0.312" UNC Class 2A 1/4" 3/4" Black-Oxide Steel 70000 psi Rockwell B84
0794FA00032 5/16"-18 3" Fully Threaded Right Hand 0.313" UNC Class 2A 3/4" 5/8" Zinc-Plated Iron - Not Rated
0784FA00021 5/16"-18 3" Fully Threaded Right Hand 0.313" UNC Class 2A 7/8" - Black-Oxide Steel 180000 psi Rockwell C40
0793FA00013 5/16"-18 3" Fully Threaded Right Hand - UNC Class 2A 23/32" 5/8" 18-8 Stainless Steel - Not Rated
0755FA00044 5/16"-18 3" Partially Threaded Right Hand 0.313" UNC Class 2A 1/4" 3/4" 18-8 Stainless Steel 80000 psi Rockwell B83
0754FA00042 5/16"-18 3" Partially Threaded Right Hand 0.313" UNC Class 2A 1/4" 3/4" 18-8 Stainless Steel 80000 psi Rockwell B83
0781FA00016 5/16"-18 3" Partially Threaded Right Hand 0.313" UNC Class 2A 3/8" 1 1/8" 18-8 Stainless Steel 80000 psi Rockwell B83
0782FA00015 5/16"-18 3" Partially Threaded Right Hand 0.313" UNC Class 2A 3/8" 1 1/8" Black-Oxide Steel 70000 psi Rockwell B84
0785FA00013 5/16"-18 3 9/16" Fully Threaded Right Hand 0.313" UNC Class 2A 7/8" - Black-Oxide Steel 180000 psi Rockwell C40
0760FA00062 5/16"-24 1/2" Fully Threaded Right Hand 0.313" UNF Class 2A 9/32" 41/64" 18-8 Stainless Steel 80000 psi Rockwell B85
0773FA00058 5/16"-24 1/2" Fully Threaded Right Hand 0.313" UNF Class 3A 13/32" 1" 18-8 Stainless Steel - Not Rated
0776FA00051 5/16"-24 1/2" Fully Threaded Right Hand 0.313" UNF Class 3A 13/32" 1" 18-8 Stainless Steel - Not Rated
0777FA00025 5/16"-24 1/2" Fully Threaded Right Hand 0.313" UNF Class 3A 13/32" 1 1/2" 18-8 Stainless Steel - Not Rated
0773FA00059 5/16"-24 5/8" Fully Threaded Right Hand 0.313" UNF Class 3A 13/32" 1" 18-8 Stainless Steel - Not Rated
0776FA00052 5/16"-24 5/8" Fully Threaded Right Hand 0.313" UNF Class 3A 13/32" 1" 18-8 Stainless Steel - Not Rated
0777FA00026 5/16"-24 5/8" Fully Threaded Right Hand 0.313" UNF Class 3A 13/32" 1 1/2" 18-8 Stainless Steel - Not Rated
0760FA00063 5/16"-24 3/4" Fully Threaded Right Hand 0.313" UNF Class 2A 9/32" 41/64" 18-8 Stainless Steel 80000 psi Rockwell B85
0796FA00030 5/16"-24 3/4" Fully Threaded Right Hand 0.313" UNF Class 2A 11/16" - Steel 40000 psi Rockwell B55
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