The SCBJ series consists of tool-only, non-spring captive panel screws designed for installation into thin sheet materials, providing secure fastening without loose components. These fasteners are available in metric thread sizes including M3 and M4, with installation and pushout forces documented for 5052-H34 aluminum and cold-rolled steel. The M4 thread variant has a recommended tightening torque of 1.7 N•m, a minimum tensile strength of 5700 N, and installation pushout values of 1000 N in aluminum and 1700 N in steel. The series features a spinning clinch design that allows for repeated assembly and disassembly. All SCBJ fasteners are identified by the PEM™ trademark and meet the manufacturer's quality standards, with performance data based on proper installation parameters.
Specifications -
Thread Size x Pitch - - M4 x 0.7
Type - - Jacking - SCBJ
Thread Code - - M4
Screw Length Code - - 10
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 - - 10.00 mm
T Nom. - - 7.70 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-M4-10-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 |
