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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.
For technical drawings and 3-D models, click on a part number.
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 |
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 |
8-32 | |||||||||||
| 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 |
10-32 | |||||||||||
| 3/8" | Fully Threaded | 0.313" | 0.180" | 0.046" | 80,000 | Fed. Spec. QQ-P-35, MS35276-261, NASM35275, NASM35276, AN501AD10-6 | 5 | 000000000 | 0000 | 0000000 | 00000 |
| 1/2" | Fully Threaded | 0.313" | 0.180" | 0.046" | 80,000 | Fed. Spec. QQ-P-35, MS35276-263, NASM35276, AN501AD10-8 | 5 | 000000000 | 0000 | 0000000 | 00000 |
| 3/4" | Fully Threaded | 0.313" | 0.180" | 0.046" | 80,000 | Fed. Spec. QQ-P-35, MS35276-265, NASM35276, AN501AD10-12 | 5 | 000000000 | 0000 | 0000000 | 00000 |
Army-Navy Medium-Strength Steel Hex Head Screws
These screws are made to stringent Army-Navy specifications that ensure performance and reliability. They have a precisely measured unthreaded portion (grip). For added strength, place this portion in joints subjected to sideways forces. Comparable in strength to Grade 5 steel screws, these screws are suitable for fastening most machinery and equipment. The cadmium plating provides good corrosion resistance to salt water. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Lg. | Grip Lg. | Thread Spacing | Wd. | Ht. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Cadmium-Plated Steel | |||||||||||
1/4"-28 | |||||||||||
| 17/32" | Partially Threaded | 15/32" | 1/16" | Fine | 7/16" | 11/64" | 120,000 | AN4-4A | 25 | 000000000 | 000000 |
| 21/32" | Partially Threaded | 15/32" | 3/16" | Fine | 7/16" | 11/64" | 120,000 | AN4-5A | 25 | 000000000 | 00000 |
| 25/32" | Partially Threaded | 15/32" | 5/16" | Fine | 7/16" | 11/64" | 120,000 | AN4-6A | 25 | 000000000 | 00000 |
| 1 1/32" | Partially Threaded | 15/32" | 9/16" | Fine | 7/16" | 11/64" | 120,000 | AN4-10A | 10 | 000000000 | 0000 |
| 1 9/32" | Partially Threaded | 15/32" | 13/16" | Fine | 7/16" | 11/64" | 120,000 | AN4-12A | 10 | 000000000 | 0000 |
| 1 17/32" | Partially Threaded | 15/32" | 1 1/16" | Fine | 7/16" | 11/64" | 120,000 | AN4-14A | 10 | 000000000 | 00000 |
| 2 1/32" | Partially Threaded | 15/32" | 1 9/16" | Fine | 7/16" | 11/64" | 120,000 | AN4-20A | 10 | 000000000 | 00000 |
5/16"-24 | |||||||||||
| 27/32" | Partially Threaded | 17/32" | 5/16" | Fine | 1/2" | 13/64" | 120,000 | AN5-6A | 10 | 000000000 | 0000 |
| 1 3/32" | Partially Threaded | 17/32" | 9/16" | Fine | 1/2" | 13/64" | 120,000 | AN5-10A | 10 | 000000000 | 00000 |
| 1 11/32" | Partially Threaded | 17/32" | 13/16" | Fine | 1/2" | 13/64" | 120,000 | AN5-12A | 10 | 000000000 | 00000 |
| 1 19/32" | Partially Threaded | 17/32" | 1 1/16" | Fine | 1/2" | 13/64" | 120,000 | AN5-14A | 10 | 000000000 | 00000 |
| 2 3/32" | Partially Threaded | 17/32" | 1 9/16" | Fine | 1/2" | 13/64" | 120,000 | AN5-20A | 10 | 000000000 | 00000 |
3/8"-24 | |||||||||||
| 53/64" | Partially Threaded | 41/64" | 3/16" | Fine | 9/16" | 15/64" | 120,000 | AN6-6A | 5 | 000000000 | 0000 |
| 1 5/64" | Partially Threaded | 41/64" | 7/16" | Fine | 9/16" | 15/64" | 120,000 | AN6-10A | 5 | 000000000 | 0000 |
| 1 21/64" | Partially Threaded | 41/64" | 11/16" | Fine | 9/16" | 15/64" | 120,000 | AN6-12A | 5 | 000000000 | 0000 |
| 1 37/64" | Partially Threaded | 41/64" | 15/16" | Fine | 9/16" | 15/64" | 120,000 | AN6-14A | 5 | 000000000 | 00000 |
| 1 53/64" | Partially Threaded | 41/64" | 1 3/16" | Fine | 9/16" | 15/64" | 120,000 | AN6-16A | 5 | 000000000 | 00000 |
| 2 5/64" | Partially Threaded | 41/64" | 1 7/16" | Fine | 9/16" | 15/64" | 120,000 | AN6-20A | 5 | 000000000 | 00000 |
| 2 37/64" | Partially Threaded | 41/64" | 1 15/16" | Fine | 9/16" | 15/64" | 120,000 | AN6-24A | 5 | 000000000 | 00000 |
| 3 5/64" | Partially Threaded | 41/64" | 2 7/16" | Fine | 9/16" | 15/64" | 120,000 | AN6-30A | 5 | 000000000 | 00000 |
1/2"-20 | |||||||||||
| 1 3/32" | Partially Threaded | 25/32" | 5/16" | Fine | 3/4" | 19/64" | 120,000 | AN8-10A | 1 | 000000000 | 0000 |
| 1 11/32" | Partially Threaded | 25/32" | 9/16" | Fine | 3/4" | 19/64" | 120,000 | AN8-12A | 1 | 000000000 | 0000 |
| 1 19/32" | Partially Threaded | 25/32" | 13/16" | Fine | 3/4" | 19/64" | 120,000 | AN8-14A | 1 | 000000000 | 0000 |
| 1 27/32" | Partially Threaded | 25/32" | 1 1/16" | Fine | 3/4" | 19/64" | 120,000 | AN8-16A | 1 | 000000000 | 0000 |
| 2 3/32" | Partially Threaded | 25/32" | 1 5/16" | Fine | 3/4" | 19/64" | 120,000 | AN8-20A | 1 | 000000000 | 0000 |
| 2 19/32" | Partially Threaded | 25/32" | 1 13/16" | Fine | 3/4" | 19/64" | 120,000 | AN8-24A | 1 | 000000000 | 0000 |
| 3 3/32" | Partially Threaded | 25/32" | 2 5/16" | Fine | 3/4" | 19/64" | 120,000 | AN8-30A | 1 | 000000000 | 0000 |
| 3 19/32" | Partially Threaded | 25/32" | 2 13/16" | Fine | 3/4" | 19/64" | 120,000 | AN8-34A | 1 | 000000000 | 0000 |
| 4 3/32" | Partially Threaded | 25/32" | 3 5/16" | Fine | 3/4" | 19/64" | 120,000 | AN8-40A | 1 | 000000000 | 00000 |
Cotter Pin-Lockable Hex Head Screws
Place a cotter pin through the hole in the shank to keep a nut from loosening (pins and nuts sold separately). These screws have a stronger hold than screws with thread lockers or lock washers. Screws are made to stringent Army-Navy specifications that ensure performance and reliability. They have a precisely measured unthreaded portion (grip). For added strength, place this portion in joints subjected to sideways forces. The cadmium plating provides good corrosion resistance to salt water. Screws have fine threads, which are closely spaced to prevent loosening from vibration; they are not compatible with coarse or extra-fine threads. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Spacing | Thread Lg. | Grip Lg. | Wd. | Ht. | Hole Dia. | For Cotter Pin Dia. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Cadmium-Plated Steel | |||||||||||||
1/4"-28 | |||||||||||||
| 17/32" | Partially Threaded | Fine | 15/32" | 1/16" | 7/16" | 11/64" | 0.076" | 1/16" | 120,000 | AN4-4 | 10 | 000000000 | 000000 |
| 21/32" | Partially Threaded | Fine | 15/32" | 3/16" | 7/16" | 11/64" | 0.076" | 1/16" | 120,000 | AN4-5 | 10 | 000000000 | 00000 |
| 25/32" | Partially Threaded | Fine | 15/32" | 5/16" | 7/16" | 11/64" | 0.076" | 1/16" | 120,000 | AN4-6 | 10 | 000000000 | 00000 |
| 1 1/32" | Partially Threaded | Fine | 15/32" | 9/16" | 7/16" | 11/64" | 0.076" | 1/16" | 120,000 | AN4-10 | 10 | 000000000 | 00000 |
| 1 9/32" | Partially Threaded | Fine | 15/32" | 13/16" | 7/16" | 11/64" | 0.076" | 1/16" | 120,000 | AN4-12 | 10 | 000000000 | 00000 |
| 1 17/32" | Partially Threaded | Fine | 15/32" | 1 1/16" | 7/16" | 11/64" | 0.076" | 1/16" | 120,000 | AN4-14 | 10 | 000000000 | 00000 |
| 2 1/32" | Partially Threaded | Fine | 15/32" | 1 9/16" | 7/16" | 11/64" | 0.076" | 1/16" | 120,000 | AN4-20 | 10 | 000000000 | 00000 |
5/16"-24 | |||||||||||||
| 27/32" | Partially Threaded | Fine | 17/32" | 5/16" | 1/2" | 13/64" | 0.076" | 1/16" | 120,000 | AN5-6 | 5 | 000000000 | 0000 |
| 1 3/32" | Partially Threaded | Fine | 17/32" | 9/16" | 1/2" | 13/64" | 0.076" | 1/16" | 120,000 | AN5-10 | 5 | 000000000 | 00000 |
| 1 11/32" | Partially Threaded | Fine | 17/32" | 13/16" | 1/2" | 13/64" | 0.076" | 1/16" | 120,000 | AN5-12 | 5 | 000000000 | 00000 |
| 1 19/32" | Partially Threaded | Fine | 17/32" | 1 1/16" | 1/2" | 13/64" | 0.076" | 1/16" | 120,000 | AN5-14 | 5 | 000000000 | 00000 |
| 2 3/32" | Partially Threaded | Fine | 17/32" | 1 9/16" | 1/2" | 13/64" | 0.076" | 1/16" | 120,000 | AN5-20 | 5 | 000000000 | 00000 |
3/8"-24 | |||||||||||||
| 53/64" | Partially Threaded | Fine | 41/64" | 3/16" | 9/16" | 15/64" | 0.106" | 3/32" | 120,000 | AN6-6 | 5 | 000000000 | 00000 |
| 1 5/64" | Partially Threaded | Fine | 41/64" | 7/16" | 9/16" | 15/64" | 0.106" | 3/32" | 120,000 | AN6-10 | 5 | 000000000 | 00000 |
| 1 21/64" | Partially Threaded | Fine | 41/64" | 11/16" | 9/16" | 15/64" | 0.106" | 3/32" | 120,000 | AN6-12 | 5 | 000000000 | 00000 |
| 1 37/64" | Partially Threaded | Fine | 41/64" | 15/16" | 9/16" | 15/64" | 0.106" | 3/32" | 120,000 | AN6-14 | 5 | 000000000 | 00000 |
| 1 53/64" | Partially Threaded | Fine | 41/64" | 1 3/16" | 9/16" | 15/64" | 0.106" | 3/32" | 120,000 | AN6-16 | 5 | 000000000 | 00000 |
| 2 5/64" | Partially Threaded | Fine | 41/64" | 1 7/16" | 9/16" | 15/64" | 0.106" | 3/32" | 120,000 | AN6-20 | 5 | 000000000 | 00000 |
| 2 37/64" | Partially Threaded | Fine | 41/64" | 1 15/16" | 9/16" | 15/64" | 0.106" | 3/32" | 120,000 | AN6-24 | 5 | 000000000 | 00000 |
| 3 5/64" | Partially Threaded | Fine | 41/64" | 2 7/16" | 9/16" | 15/64" | 0.106" | 3/32" | 120,000 | AN6-30 | 5 | 000000000 | 00000 |
1/2"-20 | |||||||||||||
| 1 3/32" | Partially Threaded | Fine | 25/32" | 5/16" | 3/4" | 19/64" | 0.106" | 3/32" | 120,000 | AN8-10 | 1 | 000000000 | 00000 |
| 1 11/32" | Partially Threaded | Fine | 25/32" | 9/16" | 3/4" | 19/64" | 0.106" | 3/32" | 120,000 | AN8-12 | 1 | 000000000 | 00000 |
| 1 19/32" | Partially Threaded | Fine | 25/32" | 13/16" | 3/4" | 19/64" | 0.106" | 3/32" | 120,000 | AN8-14 | 1 | 000000000 | 0000 |
| 1 27/32" | Partially Threaded | Fine | 25/32" | 1 1/16" | 3/4" | 19/64" | 0.106" | 3/32" | 120,000 | AN8-16 | 1 | 000000000 | 00000 |
| 2 3/32" | Partially Threaded | Fine | 25/32" | 1 5/16" | 3/4" | 19/64" | 0.106" | 3/32" | 120,000 | AN8-20 | 1 | 000000000 | 00000 |
| 2 19/32" | Partially Threaded | Fine | 25/32" | 1 13/16" | 3/4" | 19/64" | 0.106" | 3/32" | 120,000 | AN8-24 | 1 | 000000000 | 00000 |
| 3 3/32" | Partially Threaded | Fine | 25/32" | 2 5/16" | 3/4" | 19/64" | 0.106" | 3/32" | 120,000 | AN8-30 | 1 | 000000000 | 0000 |
| 3 19/32" | Partially Threaded | Fine | 25/32" | 2 13/16" | 3/4" | 19/64" | 0.106" | 3/32" | 120,000 | AN8-34 | 1 | 000000000 | 00000 |
| 4 3/32" | Partially Threaded | Fine | 25/32" | 3 5/16" | 3/4" | 19/64" | 0.106" | 3/32" | 120,000 | AN8-40 | 1 | 000000000 | 00000 |