Form-Fast™ Thread Forming Screws

The #1 choice for self threading screw applications!

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Tapped Threads vs. Formed Threads

The patented Form-Fast™ advanced design automatically forms threads as it is installed. This screw can be used in steel, die castings, plastic and other materials. The unique shape of the Form-Fast™ provides up to 60% greater holding power over similar products.

Now! - a thread forming screw design that successfully incorporates the theory and principles of a forming tap to substantially reduce drive torque while virtually eliminating seizing, galling and fracturing problems.

The Form-Fast™ screw is an advanced fastener designed to form an internal thread in steel - die cast - plastic and other materials with uniform low driving torque and provides up to 60% greater holding power than similar products. The Form-Fast™ eliminates the need for lock washers or other locking devices in normal applications. The tri-dimensional lead assures straight, fast starts with low driving torque, while the 360 degree body thread provides maximum contact for optimum clamping power and back out resistance.

Because of the wide ranging application requirements, Form-Fast™ screws are manufactured to order in virtually any pitch or size with single or twin lead threads (for higher installation efficiency and greater strip resistance).

Key Benefits of the Form-Fast™:

Screw threads are formed by "Cold-Heading" process.
Superior resistance to vibration.
Eliminates the added expense of tapping threads into a product.
Made in the U.S.A.

For additional information on this product, contact us today and we will have a fastener expert contact you.

Form-Fast™ Specifications

Form-Fast™ Torque & Recommended Hole Size For Cold Rolled Steel

The hole sizes shown below are recommendations only. Contact Fastron for specific information required to fit your application.

SIZE (Major Dia.): METAL
THICKNESS; HOLE
SIZE
+.000/-.003; DRIVING
TORQUE
(In-lbs.); FAILING
TORQUE
(In-Lbs.); TIGHTENING
TORQUE
(In-Lbs.); BREAKAWAY
TORQUE
(In-Lbs.)

2-56 .0875-.084: 1/32
1/16
3/16
1/8; .078
.079
.080
.081; 2-3
2-3
3.5-5
3.5-5; 5-6
6-8
7-8
8-9; 4
5
6
7; 2-3
2-4
4-5
4.5-6

3-48 .101-.097: 1/32
1/16
3/16
1/8; .086
.089
.091
.093; 3-4
3-4
3-5
3-5; 5-7
6-8
7-9
8-10; 4
5
6
7; 2-3
2-4
3-5
4-6

4-40 .1145-.110: 3/64
1/16
3/32
1/8; .098
.101
.101
.105; 2-4
3-4
3-5
3-5; 12-15
14-17
17-21
22-25; 8
9
11
12; 4-5
5-6
6-8
8-10

5-40 .1275-.123: 3/64
1/16
3/32
1/8; .111
.111
.113
.118; 2-4
3-5
4-7
6-8; 12-16
15-20
20-25
25-31; 11
12
18
20; 5-6
6-9
9-11
10-12

6-32 .141-.135: 1/16
3/32
1/8
1/4; .120
.125
.125
.128; 4-7
5-8
6-10
7-10; 20-25
25-30
28-35
39-41; 12
15
20
25; 6-8
7-8
10-13
13-15

8-32 .167-.162: 1/16
3/32
1/8
1/4; .146
.148
.150
.155; 6-9
6-9
10-12
12-14; 35-45
40-45
75-80
80-85; 22
25
45
45; 11-14
13-16
28-32
28-32

10-24 .194-.189: 1/16
3/32
1/8
1/4; .170
.173
.177
.177; 8-10
10-14
11-16
15-20; 45-50
50-60
75-80
85-100; 30
35
45
45; 15-20
18-20
18-22
25-30

10-32 .193-.188: 1/16
3/32
1/8
1/4; .175
.177
.180
.182; 9-12
10-15
12-17
17-22; 50-65
60-70
85-100
85-100; 30
35
45
45; 15-20
18-22
25-30
25-30

12-24 .220-.215: 3/32
1/8
3/16
1/4; .196
.199
.201
.203; 16-21
19-24
21-26
21-26; 70-80
85-100
115-140
135-160; 40
65
75
80; 20-25
25-35
35-50
45-60

1/4-20 .255-.250: 3/32
1/8
3/16
1/4; .228
.228
.234
.235; 22-26
35-40
40-50
40-50; 95-100
150-180
220-224
220-240; 60
95
125
125; 25-30
50-60
55-60
55-65

5 16-18 .318-.312: 1/8
1/4
3/8; .281
.285
.290; 45-55
85-100
110-130; 170-190
390-440
400-500; 100
185
250; 60-70
90-100
125-175

Form-Fast™ Sizes for Plastic & Other Non-Metal Materials

SIZE-TPI: 2-28; 4-20; 6-19; 8-16; 10-14; 12-14; 1/4-10

MAJOR DIA.: .0915-.089; .127-.123; .147-.143; .185.179; .212-.208; .232.226; .276.268

HOLE SIZE: .075
(-.000/+.007); .097
(-.000/+.012); .118
(-.000/+.012); .144
(-.000/+.018); .170
(-.000/+.018); .188
(-.000/+.019); .217
(-.000/+.025)