Graco 101682 Screw Cap

The Graco 101682 Screw Cap is a genuine OEM fastener designed for secure assembly of Graco airless sprayers and pump systems. It provides strong and reliable clamping for drive housings, clutch covers, and valve components.

Part Number: 101682
Thread Size: ¼-20 × 5/8
Type: Socket Head Cap Screw
Used in: GMAX II 3900, 5900, 7900 & TexSpray HD series
Ensures tight, vibration-resistant fit in high-pressure assemblies

$24.8

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Description

Overview & Key Details for Graco 101682 Screw Cap

Compatible Machines

GMAX II 3900 — Standard (17G999), ProContractor (17E828)
GMAX II 5900 — Standard / Premium variants
TexSpray 5900 HD
GMAX II 7900 — Standard / Premium variants
TexSpray 7900 HD

This part also appears across various Graco supply systems and valve/assembly kits that specify a “SCREW, cap, sch” with part no. 101682.

What is the Graco 101682 Screw Cap?

The Graco 101682 Screw Cap is an OEM socket-head cap screw used in Graco sprayers and assemblies to secure drive, clutch and housing components. It’s specified in multiple Graco parts lists and service manuals and is commonly used on GMAX II and TexSpray HD frames as well as select supply-system components.

Specifications

Part Number	101682
Description (Graco)	SCREW, cap, sch (socket-head cap screw)
Typical Size/Thread	¼-20 × 5/8 (as specified in certain Graco valve/assembly manuals)
Typical Use	Secures clutch/drive housings, pinion/gear covers, and other sub-assemblies
Compatibility Note	Use only where 101682 is called out in your model’s parts list/diagram

Fitment & Replacement Tips

Confirm by model/serial and parts diagram before ordering; many frames share hardware but lengths can vary by assembly.
Install with a quality hex/Allen driver; avoid over-torqueing into aluminum housings.
Replace in sets on critical assemblies (e.g., clutch/drive cover) to maintain even clamping force.

Frequently Asked Questions

Not necessarily. Graco specifies 101682 for defined assemblies. Hardware-store alternatives may differ in grade, finish, or length tolerance—always match the part number in your machine’s parts list.

In several Graco manuals this part is listed as a socket-head cap screw ¼-20 × 5/8. Verify against your sprayer’s specific parts diagram before purchase/installation.

It appears in parts lists for GMAX II 3900/5900/7900 frames and TexSpray 5900 HD / 7900 HD. Some supply systems and valve assemblies also specify this screw. Always confirm with the exact manual for your unit.

Reuse is not recommended if heads are rounded, threads damaged, or if the assembly is safety-critical. Replacing with new OEM 101682 helps maintain clamp load and reliability.

Torque values can vary by assembly. Follow the torque listed in your machine’s service manual for the specific sub-assembly where 101682 is used.