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5/16" Brass Square Chassis Fastener

Part ID: BR6990C-34

Technical Specifications

Material
Grade (Alloy):
Brass
360 (ASTM-B-116, QQ-B-626)
353 (ASTM-B-116)
Profile Square
Outside Diameter 5/16"
Overall Length 0.515"
Female Thread #6-32
Chassis Fastener ℄ to front of body: 0.218"
℄ to side of body: 0.156"
Panel Hole Size 0.190-0.193
Shank Length: 0.135"
Outside Diameter: 0.188"
Inside Diameter: 0.098"
Panel Thickness: 3/32"
Code: C
Swage Anvil Code 435-2
Swage Punch Code 188
Finish Desc. (Spec) Zinc Clear Chromate with Blue Tint
(ASTM-B633)
Compliant To RoHS, WEEE, REACH, Conflict Minerals

Available Finishes

Code Description Specification Quantity Available
00 Unplated Plain 0
03 Bright Dip ASTM B 281 0
31 Clear Cadmium SAE-AMS QQ-P-416 0
32 Yellow Cadmium SAE-AMS QQ-P-416 0
33 Black Zinc ASTM B633 0
34 Zinc Clear Chromate with Blue Tint ASTM-B633 154
35 Zinc Clear ASTM-B633 0
36 Zinc Yellow Chromate ASTM-B633 0
37 Zinc Yellow ASTM-B633 0
42 Electro Tin - Dull with Copper Flash ASTM B 545 0
43 Electro Tin - Bright ASTM B 545 0
48 Copper-Nickel-Bright Tin ASTM B545 0
51 Black Oxide MIL-F-495 0
52 Black Oxide MIL-C-13924 0
61 Nickel AMS-QQ-N-290 0
63 Ductile Nickel SAE-AMS-QQ-N-290 0
66 Electroless Nickel SAE AMS-C-26074 0
91 Silver QQ-S-365 0

Product Description

A chassis fastener was designed to be attached to the chassis or case of a computer. Like swage standoffs and spacers, these parts are fastened by swaging the part in place for a permanent attachment. The location of the thread in relation to the mounting surface makes these parts unique. As the thread runs parallel to the mounted surface, these fasteners create new anchor points not possible with other hardware. The square allows for maxium torqueing as the four flat sides allow for wrench tightening. Brass is corrosion resistant, nonmagnetic, and easily machinable. Base metal is yellow, but many plating options are available when different colors are required.

Stock and Lead Time

Stock 154 Same Day
Stock to Plate 0 1 to 2 weeks
Manufacture Lead Time 11-12 Weeks

Pricing as Zinc Clear Chromate with Blue Tint

Quantity Online Price
100 3.894
250 2.606
500 1.958
1,000 1.437
2,500 1.178
5,000 1.020
10,000 0.852
25,000 0.747
50,000 0.642

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To order, please send a purchase order to info@lyntron.com or contact your local distributor. Orders may be adjusted to meet line and/or order minimums. See general terms for details.