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120 - 140mm x 12mm Stainless A2-70 G304 Hose Clamp Worm Drive Universal Band Zinc Bolt

As low as $1.955 /each

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SKU: 74HCS12014012I

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Technical Specifications

Specs - Hose Clamps Universal Stainless G304.pdf

More Information
System of Measurement	Metric
Product	Hose Clamp
Size	120mm to 140mm
Corrosion Protection Level	Excellent
Class Grade	A2-70 G304
Material	Stainless Steel
Clamp Style	Worm Drive
Hex Slot Bolt	Zinc Plated Bolt
Clamp Size Range (s)	120mm to 140mm
Clamp Width (a)	20mm
Band Width (b)	12mm
Standard Made To	DIN 3017
Brand	Inox World

Dimensional data is a guide only. Tolerance differences exist between brands and batches

Description

120mm to 140mm Hose Clamps are the stainless steel band clamp that wraps around the outside of a flexible hose and is tightened with a worm-drive screw to seal the hose onto a rigid spigot or hose tail.

Also known as

Worm Drive Clamp · Hose Tightener · Pipe Clamp

Pairs with

Nutsetters

Frequently Asked Questions

What is a worm-drive hose clamp?

A stainless steel band with a screw-driven worm gear that tightens the band around a hose, pipe or cable bundle. The worm screw cinches the band as it rotates.

Standard plumbing / automotive / marine hose retention. The screw drive lets you cinch the clamp tight onto the hose with a slot or hex drive, then re-tighten over time as the hose seasoning settles.

How do I size a hose clamp to my hose?

Check the size range printed on the clamp - e.g. 10-16mm covers hoses 10mm to 16mm OD. Choose so the hose OD is in the middle of the clamp's range, not at either extreme.

Too-small clamp won't close on the hose; too-big clamp at minimum cinch can't apply enough pressure to seal. The product page lists the diameter range per stocked size.

Is the worm screw the same stainless as the band?

No. The band is stainless steel (A2-70 G304 on stocked variants), but the worm screw / drive bolt is zinc plated steel. The product title typically lists this as "Stainless Band Zinc Bolt".

Practical implication: in long-term marine or chlorinated service, the zinc plating on the bolt will rust before the stainless band fails. The clamp still works (the band carries the sealing force) but appearance can degrade and the bolt may seize. For all-stainless construction including the worm screw, specify an A4-70 G316 marine-grade variant (less commonly stocked) and we can source on request.

What grade stainless is the band?

Stocked Inox World hose clamps have an A2-70 G304 stainless steel band - the practical default for general plumbing and automotive use. For marine, coastal or chemical exposure, specify A4-70 G316 (less commonly stocked).

G304 resists rust from condensation, water spray and humidity well in mild outdoor service. G316 adds molybdenum for chloride resistance, which matters for permanent saltwater and chlorinated-pool installations.

What driver should I use?

Most worm-drive clamps take a 7mm or 8mm hex nutsetter, OR a flat-blade slot screwdriver in the worm screw head.

For high-volume install (multiple clamps per job), a magnetic nutsetter on a cordless driver is dramatically faster than a hand screwdriver.

Can I reuse a clamp?

Yes - hose clamps are reusable as long as the band and worm screw are intact. Inspect the band for kinks or stretch before reusing.

Replace any clamp where the band has bent permanently out of round, where the worm gear teeth are stripped, or where the worm screw spins freely without tightening the band.

Material & Coating

Stainless A2-70 G304 Austenitic stainless steel. Property class 70 designates a minimum tensile strength of 700 MPa with a 0.2 percent proof stress of 450 MPa. Lightly magnetic in cold-worked form, which does not affect corrosion performance.

Grade selection A2-70 G304 is the general-purpose stainless grade for outdoor and most chemical environments. A4-70 G316 contains 2 to 3 percent molybdenum, giving substantially better resistance to chlorides; A4-70 G316 is the preferred grade for marine, coastal and pool environments.

Important Do not pair stainless fasteners with plain or galvanised steel components in wet service. The galvanic potential difference accelerates corrosion of the less-noble metal.

Class Stainless fasteners are classified by property class: A2-35 / A2-50 / A2-70 in G304 stainless, and A4-40 / A4-70 / A4-80 (Bumax 88) in G316. The first digit indicates the alloy and the second is the minimum tensile strength in 100 MPa increments (e.g. A4-70 = 700 MPa). See the head marking chart and full strength table.

How to Measure

Still not sure? See our step-by-step identification guide for help measuring your fastener.

Resources

Technical library PDFs

For full technical data including key product information, range and a CAD drawing, see our Technical PDFs library.

Measurement conversion calculators

Convert between metric and imperial sizes, gauge to mm, decimal to fraction and TPI to pitch with our measurement conversion calculators.

Pricing & Delivery

Includes GST, a Tax Invoice and Free Standard Delivery anywhere in Australia.

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Disclaimer

Technical data Researched and compiled from numerous industry sources for the sole purpose of providing basic information. All material is advisory only and its use by anyone is entirely voluntary. Reliance on it for any purpose by anyone is at the sole risk of that person, and Bolt and Nut Australia is not responsible for any loss, claim or damages arising therefrom. In developing this information, Bolt and Nut Australia has made a determined effort to present it accurately.

Measurements Sizes are taken from supplier catalogues or hand-measured and should be used as a guide. Minor variation between batches is normal. Stock is sourced from various suppliers, so differences may exist between batches in markings, appearance or finish.

Product Photos & PDF Data Sheets Represent the product type, not exact size. PDFs are a reference guide only. Specifications may change without notice.

If you see any problems with any of our specifications or you require additional information please contact us.

Delivery

Orders UNDER $30

Weigh less than 500grams

Exceptions: Tools, Kits, Bulky items = Sent as a parcel with tracking

Small orders that fit into the slot of your Letterbox are sent:

FREE with Aust Post Letter delivery with NO TRACKING and delivery between 4-12 business days

Select a Quicker delivery service

$7.00 Parcel Delivery 2-7 business days
From $12.00 Express Delivery 1-4 business days
From $14.00 StarTrack PREMIUM Express Delivery 1-3 business days

Click & Collect - Warehouse pickup

Unit 9, 93 Rivergate Place, Murarrie, QLD

Place your order online and we will have it ready within 2 hours. Call if required sooner
Pickup times between 8am - 4pm, Monday - Friday

Orders OVER $30

Weigh more than 500grams

Included is orders under $30 but weigh more than 500grams or wont fit in the slot of your letterbox

Including Large and Bulky heavy orders are sent:

FREE as a Parcel Delivery WITH TRACKING and delivery between 2-7 business days

Select an Express delivery service

From $12.00 Express Delivery 1-4 business days
From $14.00 StarTrack PREMIUM Express Delivery 1-3 business days

Click & Collect - Warehouse pickup

Unit 9, 93 Rivergate Place, Murarrie, QLD

Place your order online and we will have it ready within 2 hours. Call if required sooner
Pickup times between 8am - 4pm, Monday - Friday

All delivery dates are estimated and depend on stock availability, delivery location, service chosen, size of order, time of year, when order was placed e.g long weekends or sale periods.

Further delivery information can be found on our Delivery page

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Supplier Details

MPN

HCWA26A