Worm Drive Clamps

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General Purpose Worm Drive Clamp
Type F

Worm Gear Hose Clamps

We offer multiple grades and sizes of traditional/general-purpose Type F worm drive hose clamps.
Specifications
Clamp Size Chart
Technical drawing of a hose clamp showing dimensions and a 5/16 inch hex head screw, applicable to H, H-SS, HF-SS, HL-SS Series.
Clamp Series A Diameter Range
SAE Size H HSS HF HG HL HM Inches Millimeters
6 H6 H6SS HF6SS HG6SS HL6SS HM6SS 7/16 25/32 11 20
8 H8 H8SS HF8SS HG8SS HL8SS HM8SS 7/16 29/32 11 23
10 H10 H10SS HF10SS HG10SS HL10SS HM10SS 9/16 1-1/16 14 27
12 H12 H12SS HF12SS HG12SS HL12SS HM12SS 11/16 1-1/4 18 32
16 H16 H16SS HF16SS HG16SS HL16SS HM16SS 3/4 1-1/2 19 38
20 H20 H20SS HF20SS HG20SS HL20SS HM20SS 13/16 1-3/4 21 44
24 H24 H24SS HF24SS HG24SS HL24SS HM24SS 1-1/16 2 27 51
28 H28 H28SS HF28SS HG28SS HL28SS HM28SS 1-5/16 2-1/4 33 57
32 H32 H32SS HF32SS HG32SS HL32SS HM32SS 1-9/16 2-1/2 40 64
36 H36 H36SS HF36SS HG36SS HL36SS HM36SS 1-13/16 2-3/4 46 70
40 H40 H40SS HF40SS HG40SS HL40SS HM40SS 2-1/16 3 52 76
44 H44 H44SS HF44SS HG44SS HL44SS HM44SS 2-5/16 3-1/4 59 83
48 H48 H48SS HF48SS HG48SS HL48SS HM48SS 2-9/16 3-1/2 65 89
52 H52 H52SS HF52SS HG52SS HL52SS HM52SS 2-13/16 3-3/4 71 95
56 H56 H56SS HF56SS HG56SS HL56SS HM56SS 3-1/16 4 78 102
60 H60 H60SS HF60SS HG60SS HL60SS HM60SS 3-5/16 4-1/4 84 108
64 H64 H64SS HF64SS HG64SS HL64SS HM64SS 3-9/16 4-1/2 90 114
72 H72 H72SS HF72SS HG72SS HL72SS HM72SS 4-1/16 5 103 127
80* H80 H80SS HF80SS HG80SS HL80SS HM80SS 4-9/16 5-1/2 116 140
88* H88 H88SS HF88SS HG88SS HL88SS HM88SS 5-1/16 6 129 152
96 H96 H96SS HF96SS HG96SS HL96SS HM96SS 5-9/16 6-1/2 141 165
104 H104 H104SS HF104SS HG104SS HL104SS HM104SS 6-1/16 7 154 178
116 H116 H116SS HF116SS HG116SS HL116SS HM116SS 6-1/2 7-3/4 165 197
128 H128 H128SS HF128SS HG128SS HL128SS HM128SS 5-11/16 8-1/2 144 216
*items not stocked. special order only    **HG, HL, and HM Series are not standard stocked items and may need to be special ordered.
Text stating More Sizes Available Upon Request inside a partial blue circular border.
PDF Specification Sheet
General Purpose Worm Drive Clamps - Gold Seal®

Worm Drive Hose Clamps — General Purpose Type F Slotted Band Clamps

Murray Corporation manufactures worm drive hose clamps that deliver reliable sealing performance for a wide range of industrial, commercial, and residential applications. Our Type F slotted worm drive clamps are the most versatile clamp in our product line, offering easy installation, adjustability, and dependable performance across thousands of hose connection applications.

How Worm Drive Clamps Work

A worm drive clamp consists of a slotted stainless steel band and a worm gear screw mechanism. As the screw is turned with a standard screwdriver or nut driver, the worm gear engages the slots in the band, drawing it tighter around the hose. This simple, proven mechanism allows for precise tension adjustment during installation and makes worm drive clamps easy to inspect, retighten, or remove for maintenance.

Murray's Type F worm drive clamps feature a precision-slotted band that engages smoothly with the worm gear, providing consistent tightening without binding or skipping. The band edges are designed to minimize the risk of cutting into softer hose materials during installation.

Materials and Construction

Our worm drive clamps are manufactured from high-quality stainless steel to provide corrosion resistance and long service life. Standard construction features include a stainless steel band and housing, a plated carbon steel or stainless steel screw, and a band width appropriate for the intended application range. For applications requiring enhanced corrosion resistance, our all-stainless construction option uses stainless steel for every component, including the screw and worm gear mechanism.

Applications

Worm drive clamps are the most widely used clamp type across general-purpose hose connections. Common applications include residential and commercial plumbing, agricultural and irrigation systems, HVAC ductwork and ventilation, beverage and food service equipment, pool and spa plumbing, automotive coolant and vacuum hoses, and general industrial fluid transfer.

Size Range and Availability

Murray manufactures worm drive clamps across a comprehensive size range to fit virtually any hose diameter. Our standard catalog includes sizes for hoses from less than one inch to over six inches in diameter, with custom sizes available for specialized applications. We maintain deep inventory on all standard sizes to support quick fulfillment and on-time delivery. Contact us today to request a quote or discuss your worm drive clamp requirements.

Why Choose Murray Worm Drive Clamps

Murray Corporation brings over 100 years of manufacturing expertise to every worm drive clamp we produce. Our ISO 9001:2015 certified operations ensure consistent quality across every production run, and our 98 percent on-time delivery rate means you can count on reliable supply. Whether you need a single box of clamps for a maintenance shop or container-load quantities for OEM production, Murray has the inventory depth and global manufacturing capacity to deliver. Request a quote today or browse our online catalog for detailed specifications and size charts.

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