Washer Head Machine Screw - Length: 1/2", Grip: 1/8", Thread: 1/4-28, Cadmium Plated Steel, Phillips Recess
| Detail | Characteristic |
| EXTENDED WASHER DIAMETER | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.028 INCHES MINIMUM AND 0.033 INCHES MAXIMUM |
| FASTENER LENGTH | 0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM |
| HEAD DIAMETER | 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM |
| HEAD HEIGHT | 0.096 INCHES MINIMUM AND 0.106 INCHES MAXIMUM |
| HEAD STYLE | ROUND EXTENDED WASHER |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6050 MIL SPEC 1ST MATERIAL RESPONSE OR AMS 6300 ASSN STD 2ND MATERIAL RESPONSE |
| SCREW MATERIAL | STEEL COMP 8630 OR STEEL COMP 4037 |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325 FED SPEC 2ND TREATMENT RESPONSE |
| SCREW SURFACE TREATMENT | CADMIUM OR ZINC |
| THREAD CLASS | 3A |
| THREAD LENGTH | 0.257 INCHES MINIMUM AND 0.422 INCHES MAXIMUM |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 28 |
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Unit of Measure
Discount Table - AN525-416R8
- Unit
- Discount Price / %
- 100 - 499
- $0.49
- 500 - 999
- $0.49
- 1000 - 2499
- $0.47
- 2500 and up
- $0.45
Sold In |
N/A EA |
Inventory |
N/A {4601} |
Estimated Ship Date |
N/A Ships in 1 Business Day |
Inventory Note |
N/A Need additional stock? Call (877) 920-1876 or email |
Thread Size |
N/A 1/4-28 |
Material |
N/A Steel Alloy |
Length |
N/A 1/2 in |
Grip |
N/A 0.125 in |
Head Type |
N/A Washer |
Industry Standards/Certification |
N/A AN525 |
Weight |
N/A 0.009 lb |
NSN |
N/A 5305-00-282-0135 |
NIIN |
N/A 00-282-0135 |
Part # Unpunctuated |
N/A AN525416R8 |
Minimum Order Note |
N/A Minimum order is 50. Must order in increments of 1. |
Country of Origin |
N/A USA |
Pre-Packaged Bag Quantity |
N/A 50 |
Applications |
N/A Structural |
Note |
N/A Our inventory is extensive. The majority of the items listed in our catalog are stocked and available for immediate shipment. |
California Residents |
N/A Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm. |
