Description
Overview:
This genuine Husqvarna 3/8x32 bolt is a precision steel fastener for securing components on Husqvarna walk‐behind lawn mowers, including LB 553 and LB 553S models. The 3/8x32 thread refers to a 3/8 in diameter (approximately 9.53 mm) with 32 threads per inch, equivalent to an approximate 0.79 mm pitch (UNEF). Built for reliable clamping in high‐vibration conditions, it helps maintain safe, consistent assembly of chassis and deck parts over long service life. Supplied to Husqvarna specification under MPN 504456401 (OEM No. 504 45 64-01), it provides an exact fit where this size is specified in the manufacturer's parts diagrams. A hex‐head design allows straightforward tightening with standard hand tools used in mower maintenance.
Key Features:
- Genuine Husqvarna part for assured compatibility and fit on the LB 553 series
- 3/8-32 UNEF thread: 3/8 in (≈9.53 mm) diameter, 32 TPI (≈0.79 mm pitch) for precise engagement
- Strong steel construction to withstand operational loads and vibration
- Hex‐head form for easy installation with common spanners or sockets
- Accurate, clean thread profile for repeatable torque and secure clamping
- Direct replacement for OEM references 504 45 64-01 and 504456401
- Suitable for routine servicing or component replacement without modification
- Helps maintain mower safety and performance by preventing fastener loosening
Typical Applications:
Securing mower assemblies such as chassis brackets, deck covers, guards, cable or handle fixings, linkage points, and other locations specified for a 3/8-32 bolt in Husqvarna LB 553‐series parts lists. Ideal for restoring factory specification during maintenance or repairs.
Also known as:
Hex bolt, set bolt, machine bolt, threaded fastener, 3/8-32 UNEF bolt, lawn mower fixing, assembly bolt, precision fastener.
Fits Models:
LB 553, LB 553S, LB 553Se, LB553, LB553S, LB553Se
Alternate Part Numbers:
504 45 64-01, 504456401
