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About Rounded Head Screws
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Wire-Lockable Rounded Head Screws
Wire these screws together through the hole in the head for better vibration resistance than any other rounded head screw. They have fillister head with a deep drive to maximize driving power and a narrow diameter to fit in tight spaces. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic. All are passivated to Fed. Spec. QQ-P-35 for added protection against oxidation and corrosion. Length is measured from under the head.
Screws | Bend-and-Stay 304 Stainless Steel Wire | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Head Dia. | Head Ht. | Hole Dia. | Tensile Strength, psi  | Specifications Met | Pkg. Qty. | Pkg. | Each | ||
18-8 Stainless Steel | |||||||||||
2-56 | |||||||||||
| 1/4" | Fully Threaded | 0.140" | 0.083" | 0.031" | 80,000 | Fed. Spec. QQ-P-35, MS35275-203, NASM35275, AN500AD2-4 | 10 | 000000000 | 000000 | 0000000 | 000000 |
| 5/16" | Fully Threaded | 0.140" | 0.083" | 0.031" | 80,000 | Fed. Spec. QQ-P-35, MS35275-204, NASM35275, AN500AD2-5 | 10 | 000000000 | 00000 | 0000000 | 00000 |
| 3/8" | Fully Threaded | 0.140" | 0.083" | 0.031" | 80,000 | Fed. Spec. QQ-P-35, MS35275-205, NASM35275, AN500AD2-6 | 10 | 000000000 | 00000 | 0000000 | 00000 |
| 1/2" | Fully Threaded | 0.140" | 0.083" | 0.031" | 80,000 | Fed. Spec. QQ-P-35, MS35275-207, NASM35275, AN500AD2-8 | 10 | 000000000 | 0000 | 0000000 | 00000 |
4-40 | |||||||||||
| 3/16" | Fully Threaded | 0.183" | 0.107" | 0.037" | 80,000 | Fed. Spec. QQ-P-35, MS35275-212, NASM35275, AN500AD4-3 | 5 | 000000000 | 0000 | 0000000 | 00000 |
| 1/4" | Fully Threaded | 0.183" | 0.107" | 0.037" | 80,000 | Fed. Spec. QQ-P-35, MS35275-213, NASM35275, AN500AD4-4 | 10 | 000000000 | 0000 | 0000000 | 00000 |
| 5/16" | Fully Threaded | 0.183" | 0.107" | 0.037" | 80,000 | Fed. Spec. QQ-P-35, MS35275-214, NASM35275, AN500AD4-5 | 10 | 000000000 | 0000 | 0000000 | 00000 |
| 3/8" | Fully Threaded | 0.183" | 0.107" | 0.037" | 80,000 | Fed. Spec. QQ-P-35, MS35275-215, NASM35275, AN500AD4-6 | 10 | 000000000 | 0000 | 0000000 | 00000 |
| 1/2" | Fully Threaded | 0.183" | 0.107" | 0.037" | 80,000 | Fed. Spec. QQ-P-35, MS35275-217, NASM35275, AN500AD4-8 | 10 | 000000000 | 0000 | 0000000 | 00000 |
| 3/4" | Fully Threaded | 0.183" | 0.107" | 0.035" | 80,000 | Fed. Spec. QQ-P-35, MS35275-219 | 5 | 000000000 | 00000 | 0000000 | 00000 |
6-32 | |||||||||||
| 3/16" | Fully Threaded | 0.226" | 0.132" | 0.046" | 80,000 | Fed. Spec. QQ-P-35, MS35275-225, NASM35275, AN500AD6-3 | 5 | 000000000 | 00000 | 0000000 | 00000 |
| 1/4" | Fully Threaded | 0.226" | 0.132" | 0.046" | 80,000 | Fed. Spec. QQ-P-35, MS35275-226, NASM35275, AN500AD6-4 | 10 | 000000000 | 0000 | 0000000 | 00000 |
| 5/16" | Fully Threaded | 0.226" | 0.132" | 0.046" | 80,000 | Fed. Spec. QQ-P-35, MS35275-227, NASM35275, AN500AD6-5 | 10 | 000000000 | 0000 | 0000000 | 00000 |
| 3/8" | Fully Threaded | 0.226" | 0.132" | 0.046" | 80,000 | Fed. Spec. QQ-P-35, MS35275-228, NASM35275, AN500AD6-6 | 10 | 000000000 | 00000 | 0000000 | 00000 |
| 1/2" | Fully Threaded | 0.226" | 0.132" | 0.046" | 80,000 | Fed. Spec. QQ-P-35, MS35275-230, NASM35275, AN500AD6-8 | 10 | 000000000 | 00000 | 0000000 | 00000 |
| 3/4" | Fully Threaded | 0.226" | 0.132" | 0.046" | 80,000 | Fed. Spec. QQ-P-35, MS35275-232, NASM35275, AN500AD6-12 | 5 | 000000000 | 0000 | 0000000 | 00000 |
| 1" | Fully Threaded | 0.226" | 0.132" | 0.035" | 80,000 | Fed. Spec. QQ-P-35, MS35275-234 | 5 | 000000000 | 00000 | 0000000 | 00000 |
8-32 | |||||||||||
| 1/4" | Fully Threaded | 0.270" | 0.156" | 0.047" | 80,000 | Fed. Spec. QQ-P-35, MS35275-241 | 5 | 000000000 | 00000 | 0000000 | 00000 |
| 3/8" | Fully Threaded | 0.270" | 0.156" | 0.046" | 80,000 | Fed. Spec. QQ-P-35, MS35275-243, NASM35275, AN500AD8-6 | 5 | 000000000 | 0000 | 0000000 | 00000 |
| 1/2" | Fully Threaded | 0.270" | 0.156" | 0.046" | 80,000 | Fed. Spec. QQ-P-35, MS35275-245, NASM35275, AN500AD8-8 | 5 | 000000000 | 0000 | 0000000 | 00000 |
| 3/4" | Fully Threaded | 0.270" | 0.156" | 0.046" | 80,000 | Fed. Spec. QQ-P-35, MS35275-247, NASM35275, AN500AD8-12 | 5 | 000000000 | 0000 | 0000000 | 00000 |
| 1" | Fully Threaded | 0.270" | 0.156" | 0.047" | 80,000 | Fed. Spec. QQ-P-35, MS35275-249 | 5 | 000000000 | 00000 | 0000000 | 00000 |
1/4"-20 | |||||||||||
| 3/8" | Fully Threaded | 0.414" | 0.237" | 0.047" | 80,000 | Fed. Spec. QQ-P-35, MS35275-277 | 5 | 000000000 | 00000 | 0000000 | 00000 |
| 1/2" | Fully Threaded | 0.414" | 0.237" | 0.047" | 80,000 | Fed. Spec. QQ-P-35, MS35275-279 | 5 | 000000000 | 00000 | 0000000 | 00000 |
| 3/4" | Fully Threaded | 0.414" | 0.237" | 0.047" | 80,000 | Fed. Spec. QQ-P-35, MS35275-281 | 5 | 000000000 | 00000 | 0000000 | 00000 |
| 1" | Fully Threaded | 0.414" | 0.237" | 0.047" | 80,000 | Fed. Spec. QQ-P-35, MS35275-283 | 5 | 000000000 | 00000 | 0000000 | 00000 |