Description
Terminal Block, 20x #8-32 and 2x 1/4 in Studs — BOLTON SKU 53463.
About the Terminal Block 20x #8-32 and 2x
This is a stud-type terminal block: a mounting base carrying threaded studs to which ring or fork terminals are landed and clamped with a nut and washer, rather than the screw-clamp or spring-cage arrangement used on DIN-rail terminals. The terminal block 20x 8×32 and 2x 1/4 in configuration means 22 stud positions in total, split between 20 smaller studs in the #8-32 UNC size — a unified coarse thread with a nominal major diameter of 0.164 inch, roughly 4.2 mm — and 2 larger 1/4 inch studs. That mix is the defining feature: the 20 small studs are sized for signal, control and light power circuits landed on small ring terminals, while the pair of 1/4 inch studs accept the substantially larger lugs used for main feed, return or bonding conductors. Because ring terminals cannot be pulled off a stud without removing the nut, this style of termination is retained under vibration.
Key specifications
| Attribute | Value |
|---|---|
| Termination style | Stud type (ring or fork terminals) |
| Small studs | 20 x #8-32 |
| #8-32 thread | Unified coarse, nominal major dia. 0.164 in (approx. 4.2 mm) |
| Large studs | 2 x 1/4 inch |
| Total positions | 22 |
Typical applications
A block combining twenty small studs with two heavy studs is used as a consolidated distribution and interface point inside a control panel, junction box or vehicle and airframe electrical bay — the #8-32 positions taking instrumentation, control and lighting circuits, and the 1/4 inch positions taking the main positive feed and the common return or earth bond. Stud terminations are favoured in mobile and airborne installations where screw-clamp terminals would be at risk of loosening.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
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