SCBJ series tool-only, non-spring captive panel screws are designed for fixed mounting applications requiring a rotating clinch bolt. These fasteners install into sheet materials without spring mechanisms and are available in metric thread sizes including M4. Performance data confirms a minimum tightening torque of 1.7 N·m, a minimum tensile strength of 5700 N, and installation pushout forces of 10.1 kN in 5052-H34 aluminum and 17.1 kN in cold-rolled steel. The series meets standard installation requirements for sheet hardness up to HRB 80 or HB 150. All variants share the same basic design and performance characteristics as published for the SCB/SCBJ family.
Specifications -
Thread Size x Pitch - - M4 x 0.7
Type - - Jacking - SCBJ
Thread Code - - M4
Screw Length Code - - 6
Min. Sheet Thickness - - 1.02 mm
Hole Size in Sheet + 0.08 - - 4.00 mm
E ± 0.25 - - 8.28 mm
H Nom. - - 2.03 mm
L - Length ± 0.4 - - 6.00 mm
T Nom. - - 3.70 mm
Driver Size - - #2 Phillips
Min. Dist. Hole C/L to Edge - - 5.00 mm
Thread Specification1 - - ANSI/ASME B1.13M, 6g
Material - - Heat-treated Carbon Steel
Finish - - Zinc plated, 5µm, colorless
For Use in Sheet Hardness - - HRB 80 or less (Hardness Rockwell “B” Scale) /HB 150 or less (Hardness Brinell)
1 As with all external plated threads, Class 2A/6g, the maximum major and pitch, after plating, may equal basic sizes and be gauged to Class 3A/4h, per ANSI B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, Paragraph 8.2.
| PennEngineering® | |
|---|---|
| Product Category | Captive Fasteners |
| Product Number | SCBJ-M4-6-ZI |
| Product Name | Captive Panel Screw-Tool only, Spinning Clinch Bolt, No Spring - Metric |
| Captive Fastener Class / Type | Captive Screws |
| Metric Thread Notation | Metric |
| Hole Size | 0.1575 inch (4 mm) |
| Material | Hardened Steel |
