The SCBJ™ series consists of tool-only, non-spring captive panel screws designed for spinning clinch installation into sheet materials. These fasteners are available in metric thread sizes including M3 and feature installation pushout resistance of 8580 N in 5052-H34 aluminum and 12650 N in cold-rolled steel, as tested per standard procedures. The series requires a recommended tightening torque of 0.74 N·m for M3 thread sizes and is intended for use in sheet hardness up to HRB 80 or HB 150. All SCBJ™ fasteners share the same base design criteria, with variations in length and finish handled by ordering codes.
Specifications -
Thread Size x Pitch - - M3 x 0.5
Type - - Jacking - SCBJ
Thread Code - - M3
Screw Length Code - - 12
Min. Sheet Thickness - - 1.02 mm
Hole Size in Sheet + 0.08 - - 3.00 mm
E ± 0.25 - - 6.60 mm
H Nom. - - 2.03 mm
L - Length ± 0.4 - - 12.00 mm
T Nom. - - 9.70 mm
Driver Size - - #1 Phillips
Min. Dist. Hole C/L to Edge - - 3.3 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-M3-12-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 | 0.1181 inch (3 mm) |
| Material | Hardened Steel |
