B Cable Suspension Screw
- B-type cable suspension screw — drives into the structure, no through-bolt
- Lag-screw base with a suspension eye for the cable clamp
- Hot-dip galvanized to ASTM A-153
- 5/8 / 3/4 in eye; coarse wood-screw base
- For suspending cable where a through-bolt is not possible
- Pairs with the suspension clamp on aerial spans
Technical Specifications
| Catalog | Eye | Base Ø (in) | Length (in) | Min. Tensile (kg) | Surface |
|---|---|---|---|---|---|
| RAX-BCS-58 | 5/8 in | 1/2 | 4–6 | 4,500 | HDG |
| RAX-BCS-34 | 3/4 in | 5/8 | 5–7 | 6,000 | HDG |
| Custom | Other sizes / configurations — send your conductor & structure spec | ||||
Application & Installation
Where it is used
The B-type cable suspension screw suspends a cable clamp where a through-bolt cannot be used — its coarse wood-screw base drives directly into a wood pole or arm, presenting a suspension eye for the clamp. It hangs aerial cable from the structure at tangent points without rear access.
Installation sequence
- Select the eye and base size for the cable load.
- Drill a pilot hole sized for the screw base.
- Drive the screw into the pole / arm until the eye seats.
- Hang the suspension clamp from the eye.
- Lay the cable in the clamp and dress the span.
Buyer’s Guide: B Cable Suspension Screw
1. What a B-Cable Suspension Screw Is
A B-type cable suspension screw is a suspension eye on a coarse wood-screw base. It threads into a wood pole or arm to hang a cable clamp where there is no rear access for a through-bolt — the screw-in counterpart of the A-type suspension bolt.
2. When to Use the Screw Type
Use the B-type where you cannot drill through or reach the far face of the member — a thick arm, a pole face, or a retrofit. Where a through-bolt is possible the A-type carries more load.
3. Pilot Hole & Holding
Drill the pilot to the screw root diameter so the base bites without splitting and keeps full pull-out strength. The holding comes from the wood thread, so sound timber and the right pilot are essential.
4. Eye & Strength
5/8 in and 3/4 in eyes carry the suspension clamp; minimum tensile ~4,500–6,000 kg covers the suspended cable load. Lower than the through-bolt A-type, as wood pull-out governs.
5. Galvanizing
Hot-dip galvanized to ASTM A-153 so the screw lasts in the wet timber without corroding.
6. Pairing
Carries a suspension clamp like the A-type; order with the matching clamp for the cable. Use the A-type where the higher load or through-bolt fixing is available.
