Band width: 12.5mm/14.2mm/15.8mm
Band thick: 0.6-0.7mm
Screw size: 8mm
Material: W4 304
Free running torque: 6 in-lbs (0.7 Nm)
Suggested installation torque: 94 in-lbs (11 Nm)
Our SAE J1508 series represents the gold standard for industrial and automotive hose fastening. Each clamp is manufactured to meet or exceed the rigorous technical specifications defined by the Society of Automotive Engineers (SAE), ensuring consistent performance in high-pressure and high-temperature environments.
SAE J1508 is an SAE International standard that establishes comprehensive specifications for thirty-two distinct types of hose clamps—including worm-drive and constant-torque designs—for use in automotive applications. The standard defines stringent requirements for materials, dimensional characteristics, and performance criteria, ensuring compliance with OEM-level reliability for critical fluid and gas handling systems. These clamps are engineered to perform in applications such as coolant, fuel, oil, vacuum, and emission systems, providing assured sealing integrity, vibration resistance, and durability under vehicle operating conditions.
High torque ss worm drive hose clamp is one type of SAE J 1508 hose clamps. The 12.5mm Power Lock SS worm drive hose clamp—also referred to as a high-torque clamp—incorporates an integrated structure that combines a stainless steel band with a protective metal housing. Key components include a high-strength stainless steel band, a stamped metal housing, and a worm gear adjustment mechanism. The housing fully encloses the fastening area, significantly improving torque capacity while delivering enhanced mechanical protection.

Dimension chart:
| High torque clamps Material: W4 304 |
||||||||
| Part No | SAE Size |
Dimension | Part No | SAE Size |
Dimension | |||
| mm | in inch | mm | in inch | |||||
| PW12W420 | 6 | 11-20 | 0.44"-0.78" | PW12W483 | 44 | 59-83 | 2.31"-3.25" | |
| PW12W423 | 8 | 13-23 | 0.5"-0.91" | PW12W489 | 48 | 65-89 | 2.56"-3.5" | |
| PW12W427 | 10 | 14-27 | 0.56"-1.06" | PW12W495 | 52 | 72-95 | 2.81"-3.75" | |
| PW12W432 | 12 | 18-32 | 0.69"-1.25" | PW12W4102 | 56 | 78-102 | 3.06"-4" | |
| PW12W438 | 16 | 21-38 | 0.81"-1.5" | PW12W4108 | 60 | 84-108 | 3.31"-4.25" | |
| PW12W444 | 20 | 21-44 | 0.81"-1.75" | PW12W4114 | 64 | 91-114 | 3.56"-4.5" | |
| PW12W451 | 24 | 27-51 | 1.06"-2" | PW12W4127 | 72 | 103-127 | 4.06"-5" | |
| PW12W457 | 28 | 33-57 | 1.31"-2.25" | PW12W4140 | 80 | 117-140 | 4.62"-5.5" | |
| PW12W464 | 32 | 40-64 | 1.56"-2.5" | PW12W4152 | 88 | 130-152 | 5.12"-6" | |
| PW12W470 | 36 | 46-70 | 1.81"-2.75" | PW12W4165 | 96 | 141-165 | 5.56"-6.5" | |
| PW12W476 | 40 | 50-76 | 2"-3" | PW12W4178 | 104 | 157-178 | 6.18"-7" |
|
Material:
W4 - All parts SS304
the W4 high-torque clamp delivers outstanding corrosion resistance, exceptional strength, and long-term durability. The use of SS304 ensures reliable performance in harsh environments, while its high tensile strength effectively resists deformation under pressure. This results in reduced maintenance needs, minimized downtime for inspection or replacement, and greater cost efficiency over the product lifecycle.

Key Features:
Standard Compliance: Fully compliant with SAE J1508 specifications for dimensions, torque, and material integrity.
Material Excellence: Available in high-tensile Carbon Steel (Zinc Plated) and Stainless Steel (304/316) for maximum corrosion resistance.
Precision Engineering: Low-friction housing and high-efficiency screw design prevent band stripping and ensure a leak-proof seal.
Versatile Design: Features rounded band edges to protect soft silicone and rubber hoses from damage during installation.
Available Types:
Type F: Classic Worm Gear Clamps for general industrial use.
Type T: T-Bolt Clamps for high-pressure turbo and cooling applications.
Type SL: Constant Torque (Spring Loaded) Clamps for fluctuating temperature environments.
Application:
Automotive & Transportation: Ideal for securing coolant, fuel, and power steering hoses in cars, trucks, buses, and heavy machinery. Its high torque capability and vibration resistance make it perfect for high-performance and racing vehicles.
Marine & Offshore: The 100% stainless steel construction provides excellent corrosion resistance against saltwater, making it the preferred choice for engine cooling systems, through-hull fittings, and other critical connections on boats, yachts, and offshore platforms.
Industrial Manufacturing: Used extensively in plant machinery, hydraulic systems, pneumatic lines, and processing equipment. It ensures leak-proof seals for hoses carrying water, steam, oils, chemicals, and other fluids under high pressure.
Production Workshop of sae j 1508 hose clamps


