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  3. Thumb Screws
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Thumb Screws

Knurled thumb screws are best in applications where finger pressure can supply sufficient tightening torque. If more torque is needed a Type A or B can give a greater mechanical advantage. Shoulders on thumb screws cover the pre-tapped holes and create a positive stop seating the screw flush to mating surface. The shoulder can also help prevent over tightening.

Select Head Style

Knurled - Plain - No Shoulder
Knurled - Plain - No Shoulder
Knurled - with Washer Face
Knurled - with Washer Face
No Shoulder - Type B
No Shoulder - Type B
With Shoulder - Type A
With Shoulder - Type A
Displaying 176 - 200 of 234 Results
1/4-20X3 Thumb Screw Plain Fully Thread Zinc
Product SKU:
Box Count:
Price Per Box:
1448T
400
$241.34
-+
1/4-20X3 Thumb Screw With Shoulder Full Thread Zinc
Product SKU:
Box Count:
Price Per Box:
1448TS
500
$368.09
-+
1/4-20X3 Thumb Screw With Shoulder Full Thread 18-8 Stainless Steel
Product SKU:
Box Count:
Price Per Box:
1448TS188
500
$733.10
-+
1/4-20X3 1/2 Thumb Screw Plain Fully Thread Zinc
Product SKU:
Box Count:
Price Per Box:
1456T
400
$271.19
-+
1/4-20X3 1/2 Thumb Screw With Shoulder Full Thread Zinc
Product SKU:
Box Count:
Price Per Box:
1456TS
500
$682.96
-+
1/4-20X4 Thumb Screw Plain Fully Thread Zinc
Product SKU:
Box Count:
Price Per Box:
1464T
400
$705.79
-+
1/4-20X5 Thumb Screw Plain Fully Thread Zinc
Product SKU:
Box Count:
Price Per Box:
1480T
400
$423.06
-+
1/4-28X1/2 Thumb Screw With Shoulder Full Thread Zinc
Product SKU:
Box Count:
Price Per Box:
1508TS
800
$272.22
-+
1/4-28X1 Thumb Screw With Shoulder Full Thread Zinc
Product SKU:
Box Count:
Price Per Box:
1516TS
600
$218.89
-+
5/16-18X1/2 Thumb Screw Plain Fully Thread Zinc
Product SKU:
Box Count:
Price Per Box:
3108T
500
$231.72
-+
5/16-18X1/2 Thumb Screw With Shoulder Full Thread Zinc
Product SKU:
Box Count:
Price Per Box:
3108TS
1,000
$297.70
-+
5/16-18X3/4 Thumb Screw Plain Fully Thread Zinc
Product SKU:
Box Count:
Price Per Box:
3112T
500
$178.26
-+
5/16-18X3/4 Thumb Screw With Shoulder Full Thread Zinc
Product SKU:
Box Count:
Price Per Box:
3112TS
500
$213.50
-+
5/16-18X1 Thumb Screw Plain Full Thread 18-8 Stainless Steel
Product SKU:
Box Count:
Price Per Box:
3116T188
400
$762.50
-+
5/16-18X1 Thumb Screw With Shoulder Full Thread 18-8 Stainless Steel
Product SKU:
Box Count:
Price Per Box:
3116TS188
500
$1,107.97
-+
5/16-18X1 Thumb Screw With Shoulder Full Thread Zinc
Product SKU:
Box Count:
Price Per Box:
3116TS
500
$248.66
-+
5/16-18X1 1/4 Thumb Screw Plain Fully Thread Zinc
Product SKU:
Box Count:
Price Per Box:
3120T
400
$140.61
-+
5/16-18X1 1/4 Thumb Screw With Shoulder Full Thread Zinc
Product SKU:
Box Count:
Price Per Box:
3120TS
500
$366.57
-+
5/16-18X1 1/4 Thumb Screw With Shoulder Full Thread 18-8 Stainless Steel
Product SKU:
Box Count:
Price Per Box:
3120TS188
500
$1,459.18
-+
5/16-18X1 1/2 Thumb Screw Plain Fully Thread Zinc
Product SKU:
Box Count:
Price Per Box:
3124T
400
$194.07
-+
5/16-18X1 1/2 Thumb Screw With Shoulder Full Thread Zinc
Product SKU:
Box Count:
Price Per Box:
3124TS
500
$253.83
-+
5/16-18X2 Thumb Screw Plain Fully Thread Zinc
Product SKU:
Box Count:
Price Per Box:
3132T
200
$110.80
-+
5/16-18X2 Thumb Screw With Shoulder Full Thread Zinc
Product SKU:
Box Count:
Price Per Box:
3132TS
300
$128.95
-+
5/16-18X2 1/2 Thumb Screw Plain Fully Thread Zinc
Product SKU:
Box Count:
Price Per Box:
3140T
200
$130.98
-+
5/16-18X2 1/2 Thumb Screw Plain Full Thread 18-8 Stainless Steel
Product SKU:
Box Count:
Price Per Box:
3140T188
100
$199.94
-+