Betts offers a variety of ASME swing-bolts for the Full Opening Manhole product line. All ASME swing-bolts are a solid one-piece design made from 17-7 stainless steel with 5/8-11 UNC threads. Wing-nuts are 304 stainless steel.
Wing-nut includes a staked-on bearing washer for decreased wear and a retention e-clip is included on top of swing-bolt to keep the wing-nut from accidentally unthreading off of the swing-bolt while opening manhole. Assemblies ending in “002” include swing-bolt pin (4463SL) and 1/8” coil pin (9Q8605). Please note: older style swing-bolts have a larger coil pin hole diameter; therefore, specify the “002” kit to ensure the necessary replacement components are received.
Swing-bolt / wing-nut assemblies will last longer if properly maintained. Keep threads clean and lubricated with anti-seize compound, and never hit wing-nuts with a hammer. Use proper wing-nut tools 6443SS or 6469SL with a maximum torque of 45 ft-lbs.
The sealed wing-nut option offers a solid top-plate to protect the threads from water or debris and also includes a grease fitting for preventive maintenance.
For additional information on Betts products and Proposition 65 list please see: https://www.bettsind.com/proposition-65/
Part # | Description | Length | Replaces |
4481SL002 | ASME Swing-bolt 4459SL / Wing-nut Assembly w/ Pin and Coil Pin | 3.25″ | 4102SF 4184SF |
4487SL002 | ASME Swing-bolt 4459SL / Sealed Wing-nut Assembly w/ Pin and Coil Pin |
3.25″ | 4102SF 4147SF |
4482SL002 | ASME Swing-bolt 4480SL / Wing-nut Assembly w/ Pin and Coil Pin | 3.81″ | n/a |
4483SL002 | ASME Swing-bolt 4472SL / Wing-nut Assembly w/ Pin and Coil Pin | 4.5″ | 4119SL 4472SL |
4486SL002 | ASME Swing-bolt 4472SL / Hex-nut Assembly w/ Pin and Coil Pin | 4.5″ | 3615SF 4472SL |
4484SL002 | ASME Swing-bolt 4473SL / Wing-nut Assembly w/ Pin and Coil Pin | 5.13″ | 4143SL |
4485SL002 | ASME Swing-bolt 4473SL / Special Wing-nut Assembly w/ Pin and Coil Pin (For 8171 Manholes) |
5.13″ | 4120SL 4263SL |