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PERMCO CAP SCREW/HEX 1/2-13X 2-3/4

Brand Permco Inc.	Brand Permco	Pack Size 1.00	UOM EA	Supplier Part Number W1-88	Product Weight 1.00 lbs

Product Questions & Answers 3

Product Questions & Answers

Is this the actual OEM screw for Permco pumps, or just something that fits?

Question by: Billy S on Mar 16, 2026, 2:29 PM

Genuine Permco part, sourced directly from them. The SKU W1-88 is their own part number, so you're getting the same fastener that goes in at the factory, not a generic substitute. For clamping integrity on a hydraulic pump or motor housing, that matters more than folks sometimes realize.

Answer by: Customer Support on Mar 17, 2026, 5:00 PM

got a permco pump apart on the bench. is this the right bolt for it, or is it some oddball size

Question by: Roger G on Sep 8, 2025, 5:07 PM

For Permco pump and motor assemblies that call for a standard hex cap screw in 1/2-13 UNC thread and a 2-3/4 inch length, this matches that spec. It is a genuine Permco service part, so the thread and length are meant to line up with original equipment hardware that uses that size.

Answer by: Customer Support on Sep 9, 2025, 9:10 PM

Just want to make sure this is the right size bolt for my Permco pump. It's for the housing.

Question by: Johnny A on Jan 17, 2026, 7:56 AM

This Permco cap screw is a direct replacement part, made to the original specifications for Permco hydraulic pumps and motors. The 1/2-13 x 2-3/4 size is suitable for typical housing and mounting configurations on those units.

Answer by: Customer Support on Jan 18, 2026, 8:46 PM