Additional information
| Material | |
|---|---|
| Head Type | |
| Thread Type | |
| Recess Type | |
| Plating/Finish | |
| RoHS/REACH Compliance |
Screw with Flat Washer, Corrosion Resistant Steel
This is a corrosion resistant steel pan head screw with machine threads, Phillips recess and is RoHS/REACH compliant. The screw head is colored with a thermosetting coating and has a captive nylon washer molded in a matching color.
Please see the data sheet for more information and size options.
Description
This is a corrosion resistant steel pan head screw with machine threads, Phillips recess and is RoHS/REACH compliant. The screw head is colored with a thermosetting coating and has a captive nylon washer molded in a matching color.
Please see detailed specifications for more information and size options.
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Detailed Specifications
FEATURES:
1. The one piece screw and captive washer simplifies handling, installation and removal of attachment hardware.
2. Attachment hardware, color-matched with the mounting surface eliminates distraction from the information display by blending with the background.
3. Screw heads are formed by cold forging which increases the basic tensile strength of the corrosion resistant steel by 25%. The resultant high tensile strength thus eliminates burring and yield of the substrate under the coating material.
4. The nylon washer provides a resilient cushion to protect the finished surface of panels and equipment.
5. A self-locking feature to prevent vibration from loosening the screw is achieved by the compression effect of the nylon washer between the screw head and the panel.
6. A seal for moisture, low pressure gases and vapors can be affected between the screw head and the panel surface by the compression of the nylon washer.
NOTES:
1. The screws listed in this series reflect aircraft quality with emphasis on the forming of the Phillips recess to meet design specification.
2. Care should be exercised to assure that the screwdriver tools meet the same quality and design specification in order to eliminate mismating and subsequent damage to the drive recess and coating material.
3. Inventory of all sizes listed in the table and colors listed in the forward section of this catalog are carried in stock to assure prompt deliveries. Lengths not listed are also available on order.
SPECIFICATIONS:
1. Screws are corrosion resistant steel (CRES) and meet all requirements of MS51957 (UNC-2A) and MS51958 (UNF-2A).
2. Screws are stocked passivated per SAE-AMS-2700.
3. Threads are in conformance with MIL-S-7742 and H-28 Federal Handbook for threads.
4. Screw lengths are expressed in code for 1/16-inch increments. Lengths not listed in above table may be specified, however, contact factory to determine availability.
5. Washer color is achieved by molding with pigmented nylon per ASTM D4066. Natural (translucent) washer is furnished with polished head screw.
6. Screw head coating and washer colors are matched to customer requirements. We recommend selection from FED-STD-595 whenever possible but we are also prepared to match customer-furnished color chips or samples.
