Solutions Inc.
CAGE: 72794
DFCI Solutions Inc.
The original manufacturer of the Quarter-Turn fastener.
Our company has not changed ownership and is still a
Veteran Owned - Small Business.
The Customer is Number One!
DFCI Solutions Inc.
The original manufacturer of the Quarter-Turn fastener.
Our company has not changed ownership and is still a
Veteran Owned - Small Business.
The Customer is Number One!
To order, add up the thickness of the panels being joined together, as shown here. Next, locate the total thickness on the chart.
4639-65 or 4639-665 Flush Head Fastener or
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| Total Material Thickness | Stud Grip | Spring Height |
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4639-65 Flush Head Part Number |
4639-665 Flush Head Part Number |
RACEX® Flush Head Part Number |
Weld Plate Part Number | |||
| .060"-.097" | .400" | .360" | 4639-65-400 | 4639-665-400 | RACEX-F6540-Z3CT | 4639-24945-360 |
| .089"-.122" | .400" | .335" | 4639-65-400 | 4639-665-400 | RACEX-F6540-Z3CT | 4639-24945-335 |
| .114"-.147" | .400" | .310" | 4639-65-400 | 4639-665-400 | RACEX-F6540-Z3CT | 4639-24945-310 |
| .139"-.172" | .400" | .285" | 4639-65-400 | 4639-665-400 | RACEX-F6540-Z3CT | 4639-24945-285 |
| .164"-.197" | .500" | .360" | 4639-65-500 | 4639-665-500 | RACEX-F6550-Z3CT | 4639-24945-360 |
| .189"-.222" | .500" | .335" | 4639-65-500 | 4639-665-500 | RACEX-F6550-Z3CT | 4639-24945-335 |
| .214"-.247" | .550" | .360" | 4639-65-550 | 4639-665-550 | RACEX-F6555-Z3CT | 4639-24945-360 |
| .239"-.272" | .550" | .335" | 4639-65-550 | 4639-665-550 | RACEX-F6555-Z3CT | 4639-24945-335 |
| .264"-.297" | .550" | .310" | 4639-65-550 | 4639-665-550 | RACEX-F6555-Z3CT | 4639-24945-310 |
