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Note - Betts has switched to a new design swing bolt for ASME full opening manholes. All ASME manholes built since 2018 have the new design. Instead of a 'barrel' head for the swing bolt pin to go through, the head is more of a 'bulb' as in the picture. The kits listed below give you the entire new assembly to replace the older style.

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. For more information use downloadable file to the right.

Betts 4483SL002
Unit of Measure
Items Dome Lid Wing Nut
BET3576SL
Manhole Wingnut Assy
Price $20.32
Non-ASME & ASME Dome Swing Bolt
BET3765SL
Swing Bolt Non-ASME Manhole
Price $23.71
Non-ASME & ASME Dome Swing Bolt
BET4102SF
Swing Bolt ASME - Obsolete Use BET4481SL002 or BET4487SL002
Price Quote
Swing Bolt Pin
BET3086SL
Swing Bolt Pin Non-ASME & Pre 2018 ASME (Uses .250 Dia. Roll Pin)
Price $24.55
Swing Bolt Pin
BET4463SL
Swing Bolt Pin ASME 2018 and After (Uses .125 Dia. Roll Pin)
Price $7.35
Package Type N/A Each
Units Per Package N/A 1
Body Material N/A 304 Stainless Steel N/A 17-7 Stainless Steel N/A N/A 304 Stainless Steel N/A 304 Stainless Steel
Manufacturer N/A Betts
Vendor Item # N/A 3576SL N/A 3765SL N/A 4102SF N/A 3086SL N/A 4463SL
Weight N/A .80 lb N/A .35 lb N/A .35 lb N/A .15 lb N/A .15 lb
Length N/A N/A 3.25 " N/A N/A N/A
Replaces N/A
Qty Req'd for Discount N/A 10 N/A 10 N/A N/A N/A
% Discount at Checkout N/A 5 % N/A 5 % N/A N/A N/A