Part# QS200-64H
MFR Model# 200-64H


Perforated stainless steel worm-drive clamp. Heavy-duty four-piece Quadra-Lock construction enables far more tightening torque to be delivered to the band perforations. Use for aircraft and heavy-duty industrial applications. Conical Arched Perforated Slots: More steel between perforations for added strength and smoother worm-drive engagement. Made in the USA
    Aero-Seal Specs
    9/16" (14.2mm) band
    5/16" (7.9mm) slotted hex screw
    Per SAE standard J1508 Type F
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -



Good quality.

Eaa C
May 24, 2020

Excellent service and product.

Kim M
May 14, 2020

quality product at a good price

Tommy H
May 7, 2020

High quality clamps, screw and clamp itself can be made tight without slipping.

October 27, 2019

Very good, high quality, stainless steel clamps!

Bruce W
May 18, 2019

High Quality Clamp!

Travis E
June 23, 2018

Great quality and fast shipping

Michael D
June 21, 2018

United States. Just more slower than I anticipated. certainly not your fault.

Don G
February 20, 2017


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Please explain how these are listed. How do I know which size I need to order based on the hose size that I have?

The web site lists the O.D. of each hose size. Select a clamp slightly larger than the O.D. of the hose selected.

Q: Are the screws on these QS200 hose clamps also stainless?

Yes. The band, housing and screw are stainless steel.

Q: Can these QS200 Hose Clamps handle high temperature on the exhaust pipe to attach carb heat box to pipe?

The clamp screw is made of 410 stainless steel, and the band is 300 stainless. It can be used on hi-temp applications.

Q: Are these QS200 Hose Clamps hi-torque?

Per the supplier: No, these are not high torque.

Q: Is the clamp all stainless steel? Wanting to use in a marine application.

Yes, the band and screw is stainless steel.

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