Aircraft Spruce & Specialty Co.
Corona, CA | Chicago, IL
Wasilla, AK | Peachtree City, GA
Brantford, ON Canada
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| Material | Thread | Length | Part No. | Phillips Price | Slotted Price |
|---|---|---|---|---|---|
| Cad Plated | 4-40 | 1/4 | AN526-440R4 | $0.20 | - |
| Cad Plated | 4-40 | 3/8 | AN526-440R6 | $0.07 | - |
| Cad Plated | 4-40 | 1/2 | AN526-440R8 | $0.06 | - |
| Cad Plated | 6-32 | 1/4 | AN526-632R4 | $0.05 | - |
| Cad Plated | 6-32 | 5/16 | AN526-632R5 | $0.06 | - |
| Cad Plated | 6-32 | 3/8 | AN526-632R6 | $0.06 | $0.14 |
| Cad Plated | 6-32 | 7/16 | AN526-632R7 | $0.06 | - |
| Cad Plated | 6-32 | 1/2 | AN526-632R8 | $0.06 | $0.11 |
| Cad Plated | 6-32 | 9/16 | AN526-632R9 | $0.08 | - |
| Cad Plated | 6-32 | 5/8 | AN526-632R10 | $0.07 | $0.54 |
| Cad Plated | 6-32 | 3/4 | AN526-632R12 | $0.08 | $0.16 |
| Cad Plated | 6-32 | 7/8 | AN526-632R14 | $0.07 | - |
| Cad Plated | 6-32 | 1 | AN526-632R16 | $0.08 | $0.21 |
| Cad Plated | 6-32 | 1-1/8 | AN526-632-R18 | $0.08 | $0.08 |
| Cad Plated | 6-32 | 1-1/4 | AN526-632-R20 | $0.22 | $0.25 |
| Cad Plated | 6-32 | 1-1/2 | AN526-632-R24 | $0.17 | - |
| Cad Plated | 6-32 | 2 | AN526-632-R32 | $0.20 | - |
| Cad Plated | 8-32 | 1/4 | AN526-832R4 | $0.08 | - |
| Cad Plated | 8-32 | 5/16 | AN526-832R5 | $0.07 | - |
| Cad Plated | 8-32 | 3/8 | AN526-832R6 | $0.07 | - |
| Cad Plated | 8-32 | 7/16 | AN526-832R7 | $0.08 | - |
| Cad Plated | 8-32 | 1/2 | AN526-832R8 | $0.07 | $0.46 |
| Cad Plated | 8-32 | 9/16 | AN526-832R9 | $0.08 | - |
| Cad Plated | 8-32 | 5/8 | AN526-832R10 | $0.08 | - |
| Cad Plated | 8-32 | 3/4 | AN526-832R12 | $0.08 | $0.24 |
| Cad Plated | 8-32 | 7/8 | AN526-832R14 | $0.09 | - |
| Cad Plated | 8-32 | 1 | AN526-832R16 | $0.11 | $0.19 |
| Cad Plated | 8-32 | 1-1/8 | AN526-832-R18 | $0.18 | $0.19 |
| Cad Plated | 8-32 | 1-1/4 | AN526-832-R20 | $0.19 | $0.08 |
| Cad Plated | 8-32 | 1-1/2 | AN526-832-R24 | $0.29 | - |
| Cad Plated | 10-32 | 1/4 | AN526-1032R4 | $0.11 | - |
| Cad Plated | 10-32 | 5/16 | AN526-1032R5 | $0.08 | - |
| Cad Plated | 10-32 | 3/8 | AN526-1032R6 | $0.10 | - |
| Cad Plated | 10-32 | 7/16 | AN526-1032R7 | $0.07 | - |
| Cad Plated | 10-32 | 1/2 | AN526-1032R8 | $0.09 | $0.48 |
| Cad Plated | 10-32 | 9/16 | AN526-1032R9 | $0.09 | - |
| Cad Plated | 10-32 | 5/8 | AN526-1032R10 | $0.09 | $0.16 |
| Cad Plated | 10-32 | 3/4 | AN526-1032R12 | $0.12 | $0.13 |
| Cad Plated | 10-32 | 7/8 | AN526-1032R14 | $0.12 | - |
| Cad Plated | 10-32 | 1 | AN526-1032R16 | $0.13 | $0.32 |
| Cad Plated | 10-32 | 1-1/8 | AN526-1032R18 | $0.13 | $0.20 |
| Cad Plated | 10-32 | 1-1/4 | AN526-1032R20 | $0.16 | - |
| Cad Plated | 10-32 | 2 | AN526-1032R32 | $0.52 | - |
| Stainless | 4-40 | 1/2 | AN526C-440R8 | $0.08 | - |
| Stainless | 6-32 | 1/4 | AN526C-632R4 | $0.07 | $0.26 |
| Stainless | 6-32 | 3/8 | AN526C-632R6 | $0.09 | - |
| Stainless | 6-32 | 1/2 | AN526C-632R8 | $0.08 | $0.20 |
| Stainless | 6-32 | 5/8 | AN526C-632R10 | $0.09 | $0.30 |
| Stainless | 6-32 | 3/4 | AN526C-632R12 | $0.10 | $0.22 |
| Stainless | 6-32 | 1 | AN526C-632R16 | $0.11 | $0.29 |
| Stainless | 8-32 | 1/4 | AN526C-832R4 | $0.14 | - |
| Stainless | 8-32 | 3/8 | AN526C-832R6 | $0.10 | - |
| Stainless | 8-32 | 7/16 | AN526C-832R7 | $0.11 | - |
| Stainless | 8-32 | 1/2 | AN526C-832R8 | $0.10 | $0.16 |
| Stainless | 8-32 | 5/8 | AN526C-832R10 | $0.11 | $0.23 |
| Stainless | 8-32 | 3/4 | AN526C-832R12 | $0.13 | $0.34 |
| Stainless | 8-32 | 1 | AN526C-832R16 | $0.16 | $1.50 |
| Stainless | 10-32 | 1/4 | AN526C-1032R4 | $0.38 | - |
| Stainless | 10-32 | 3/8 | AN526C-1032R6 | $0.13 | $0.21 |
| Stainless | 10-32 | 1/2 | AN526C-1032R8 | $0.13 | $0.24 |
| Stainless | 10-32 | 5/8 | AN526C-1032R10 | $0.15 | $0.20 |
| Stainless | 10-32 | 3/4 | AN526C-1032R12 | $0.16 | - |
| Stainless | 10-32 | 1 | AN526C-1032R16 | $0.18 | $0.40 |
| Stainless | 10-32 | 1-1/2 | AN526C-1032R24 | $0.24 | - |
| Stainless | 1/4-20 | 1/2 | AN526C-420R8 | $1.57 | - |
| Stainless | 1/4-28 | 1/2 | AN526C-428R8 | $0.28 | - |
| Stainless | 1/4-28 | 3/4 | AN526C-428R12 | $0.42 | - |
| Carbon Steel | 6-32 | 3/8 | AN526C-632-6 | - | $0.17 |
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Overview
| Truss-head non-structural machine screws made of carbon steel, cadmium plated. Minimum tensile strength 55,000 PSI. Available in slot head or Phillips recessed head. |
Reviews
Excellent screws and they were delivered FAST !
This product really screwed my airplane!
routine hardware order, in this case for an item that I skipped on the previous order. This order very small and I’m sure a pain to full fill. Thanks for great service on even this order.
As expected.
Product came in good shape and on time.
High quality screws
The AN526 machine screws were as advertised and flawless. Shipping was quick and accurate.
Great company to order from. Arrived quickly and packaged neatly. Will definitely order again
What are the thread sizes and qty. of the various screws in kit 04-03000 for my 1969 Monney M-20C
Quality material delivered on time as promised. If needed, I would certainly purchase from them again.
Q&A
Yes, they are measured from the bottom of the head to the end of the screw, the threaded portion.
No, it is a standard 4-40 thread.
Regarding Thread Sizes
Coarse Thread: 6-32, 8-32, 10-24, 1/4-20
Fine Thread: 6-40, 8-36, 10-32, 1/4-28
The first number is the size, or diameter, and the dash number is the thread count per inch. A #4 screw is .112" diameter.
You may want to consult with your A&P for more details of which would be better for your application. We suggest using the hardware recommended in the aircraft parts and maintenance manuals.
