Norma Torro Stainless Steel Worm Drive W4 Hose Clamp

Engineered for superior performance, the NORMA TORRO® Worm Drive Hose Clamp – W4 Full Stainless 304 delivers exceptional durability and corrosion resistance, thanks to its full AISI 304 stainless steel construction. Ideal for demanding environments—from marine and automotive to industrial and agricultural use—its patented asymmetrical design ensures even pressure distribution for a tight, leak-proof seal without damaging the hose. Trusted by professionals worldwide, it’s the reliable choice when quality and longevity matter most.

Application: The NORMA TORRO® Worm Drive Hose Clamp – W4 Full Stainless 304 is a heavy-duty, leak-proof solution for securing fluid lines across industrial, agricultural, construction, marine, and mining applications.

Features

Material - AISI 304 stainless steel construction provides outstanding corrosion resistance and long-lasting durability.

Design - Patented asymmetrical housing ensures even pressure distribution, high torque strength, and a secure, leak-proof seal.

Range - Complies with DIN 3017, covering clamping sizes from 8–12 mm up to 140–160 mm for broad compatibility.

Assembly - Features screw support and a compact saddle for effortless installation and consistent pressure.

Strength - Handles high mechanical loads with ease, ideal for tough industrial and outdoor conditions.

Safety - Smooth or stamped inner band protects hoses from damage and wear.
Eco-Friendly: Free from chromium (VI), offering a safer, environmentally responsible solution.

We have a large range of Rural B Poly & Threaded Pipe Fittings. Please see below.

Rural B Poly Pipe Joiners - PE x PE

Sizes:

• 3/4" (NR122)
• 1" (NR133)
• 1 1/4" (NR144)
• 1 1/2" (NR155)
• 2" (NR166)

Rural B Male End Connector - PE x MI

Sizes:

• 3/4" x 20mm (NR222)
• 1" x 25mm (NR233)
• 1 1/4" x 32mm (NR244)
• 1 1/2" x 25mm (NR253)
• 1 1/2" x 40mm (NR255)
• 2" x 50mm (NR266)

Rural Female End Connector - PE x FI

Sizes:

• 1" x 20mm (NR832)
• 1" x 25mm (NR833)
• 1 1/4" x 32mm (NR844)
• 1 1/2" x 40mm (NR855)

Telescopic Rural Joiner - PE x PE

Sizes:

• 1" (NXTR133)
• 1 1/4" (NXTR144)
• 1 1/2" (NXTR155)
• 2" (NXTR166)

Slipfit Rural Joiner - PE x PE

Sizes:

• 1" (NSFR133)
• 2" (NSFR166)

Rural Elbow - PE x PE

Sizes:

• 1" (NR533)
• 1 1/4" (NR544)
• 1 1/2" (NR555)
• 2" (NR566)

Rural Female Elbow - PE x FI

Sizes:

• 1" x 25mm (NR633)
• 1 1/2" x 40mm (NR655)

Rural Male Elbow - PE x MI

Sizes:

• 1 1/4" x 25mm (NR743)

Rural Tee - PE x PE x PE

Sizes:

• 1" (NR333)
• 1 1/4" (NR344)
• 1 1/2" (NR355)

Rural Female Tee - PE x FI x PE

Sizes:

• 1" x 20mm (NR432)
• 1" x 25mm (NR433)
• 1 1/2" x 40mm (NR455)
• 2" x 50mm (NR466)

Rural Line End - PE x Blank

Sizes:

• 1" (NR03)

Rural Tapping Saddle - PE x FI

Sizes:

• 1 1/4" x 25mm (RS043)
• 1 1/2" x 20mm (RS052)
• 1 1/2" x 25mm (RS053)
• 2" x 25mm (RS063)

BSP Threaded Reducing Bush – MI x FI

Sizes:

• 1/2" x 1/4" (15x8mm) (GRB1508)
• 3/4" x 1/2" (20x15mm) (GRB2015)
• 1" x 1/2" (25x15mm) (GRB2515)
• 1" x 1/2" (25x20mm) (GRB2520)
• 1 1/4" x 1/2" (32x20mm) (GRB3220)
• 1 1/4" x 1" (32x25mm (GRB3225)
• 1 1/2" x 1/2" (40x20mm) (GRB4020)
• 1 1/2" x 1" (40x25mm) (GRB4025)
• 1 1/2" x 1 1/4" (40x32mm) (GRB4032)
• 2" x 1" (50x25mm) (GRB5025)
• 2" x 1 1/2" (50x40mm) (GRB5040)
• 2 1/2" x 2" (65x50mm) (GRB6550)

BSP Threaded Nipple – MI x MI

Sizes:

• 1/2" (15mm) (GHN15)
• 3/4" (20mm) (GHN20)
• 1" (25mm) (GHN25)
• 1 1/4" (32mm) (GHN32)
• 1 1/2" (40mm) (GHN40)
• 2" (50mm) (GHN50)

BSP Threaded Reducing Nipple – MI x MI

Sizes:

• 1/2" x 1/4" (15x8mm) (SRHN1508)
• 3/4" x 1/2" (20x15mm) (GRHN2015)
• 1" x 1/2" (25x20mm) (GRHN2520)
• 1 1/2" x 1" (40x25mm) (GRHN4025)
• 2" x 1" (50x25mm) (GRHN5025)
• 2" x 1 1/4" (50x32mm) (GRHN5032)
• 2" x 1 1/2" (50x40mm) (GRHN5040)

BSP Threaded Male Hose Tail – MI x MI

Sizes:

• 3/8" (10mm) (SMHT10)
• 1" (25mm) (GMHT25)
• 1 1/4" (32mm) (GMHT32)
• 1 1/2" (40mm) (GMHT40)
• 2" (50mm) (GMHT50)

BSP Threaded Socket – FI x FI

Sizes:

• 1/2" (15mm) (GS15)
• 3/4" (20mm) (GS20)
• 1" (25mm) (GS25)
• 1 1/2" (40mm) (GS40)
• 2" (50mm) (GS50)

BSP Threaded Tee – FI x FI x FI

Sizes:

• 1/2" (15mm) (GT15)
• 3/4" (20mm) (GT20)
• 1" (25mm) (GT25)
• 1 1/2" (40mm) (GT40)
• 2" (50mm) (GT50)

BSP Threaded Reducing Socket – FI x FI

Sizes:

• 3/4" x 1/2" (20x15mm) (GRS2015)
• 1" x 3/4" (25x20mm) (GRS2520)
• 1 1/4" x 1" (32x25mm) (GRS3225)
• 1 1/4" x 1/2" (32x20mm) (GRS3220)
• 1 1/2" x 3/4" (40x20mm) (GRS4020)
• 1 1/2" x 1" (40x25mm) (GRS4025)
• 2" x 1" (50x25mm) (GRS5025)
• 2" x 1 1/2" (50x40mm) (GRS5040)
• 3" x 2" (80x50mm) (GRS8050)

BSP Threaded Nut and Tail – FI x FI

Sizes:

• 1 1/2" (40mm) (GNT40)
• 2" (50mm) (GNT50)

BSP Threaded 90° Male / Female Elbow – MI x FI

Sizes:

• 1/2" (15mm) (GMFE15)
• 3/4" (20mm) (GMFE20)
• 1" (25mm) (GMFE25)
• 1 1/4" (32mm) (GMFE32)
• 1 1/2" (40mm) (GMFE40)
• 2" (50mm) (GMFE50)

BSP Threaded 90° Female Elbow – FI x FI

Sizes:

• 3/4" (20mm) (GE20)
• 1" (25mm) (GE25)
• 1 1/2" (40mm) (GE40)
• 2" (50mm) (GE50)
• 3" (75mm) (GE80)

BSP Poly Pipe Risers - MI x MI

Multiple Sizes:

• Click here to see all available sizes

Hose Clamps

Multiple Types:

• Torro W3 Worm Drive Hose Clamps
• Torro W4 Worm Drive Hose Clamp
• GBS W2 T-Bolt Hose Clamps
• GBS W4 T-Bolt Hose Clamps