Hose Clamp Size Chart

Every hose clamp size Supply Tie lists, taken from our live hose clamp listings. Each row gives the clamping range exactly as listed, the clamp size number, the style and a link to price and order that exact clamp.

How to read a hose clamp size

  • Clamp range. The smallest and largest outside diameter the clamp closes on. Measure the outside of the hose where it sits on the fitting and pick a clamp whose range covers it, ideally near the middle.
  • Size no. The number printed on the band (SAE 6, 12, 20 and so on for worm-gear clamps; for T-bolt clamps the number tracks the range). Shown as listed.
  • Style. Band (standard worm gear), Marine (all stainless), Turn Key (wing handle, no tool needed), Snaplock, and T-Bolt (heavy-duty, for turbo, radiator and large hose).
  • Also written. The range in millimetres, and the size number with a # sign.

Worm-gear hose clamps (47 sizes)

Clamp range Size no. Style Line Also written Product
1/4 to 5/8 in 4 Marine Micro-Gear 6 to 16 mm · #4 Ideal Tridon Micro-Gear 1/4 in to 5/8 in. SAE 4 Silver Hose Clamp Stainless Steel Marine — 345004551
1/4 to 5/8 in 4 Marine Micro-Gear 6 to 16 mm · #4 Ideal Tridon Micro-Gear 1/4 in to 5/8 in. SAE 4 Silver Hose Clamp Stainless Steel Marine — 359004551
5/16 to 7/8 in 6 Marine — 8 to 22 mm · #6 Ideal Tridon 5/16 in. 7/8 in. SAE 6 Silver Hose Clamp Stainless Steel Marine
5/16 to 7/8 in 6 Marine Micro-Gear 8 to 22 mm · #6 Ideal Tridon Micro-Gear 5/16 in to 7/8 in. SAE 6 Silver Hose Clamp Stainless Steel Marine
5/16 to 7/8 in 6 Band Micro-Gear 8 to 22 mm · #6 Ideal Tridon Micro-Gear 5/16 in to 7/8 in. SAE 6 Silver Hose Clamp Stainless Steel Band
3/8 to 7/8 in 6 Band — 10 to 22 mm · #6 Ideal Tridon 3/8 in. 7/8 in. SAE 6 Silver Hose Clamp Stainless Steel Band
3/8 to 7/8 in 6 Marine Hy Gear 10 to 22 mm · #6 Ideal Tridon Hy Gear 3/8 in to 7/8 in. SAE 6 Silver Hose Clamp Stainless Steel Marine
3/8 to 7/8 in 6 Band Hy Gear 10 to 22 mm · #6 Ideal Tridon Hy Gear 3/8 in to 7/8 in. SAE 6 Silver Hose Clamp Stainless Steel Band
7/16 to 1 in 8 Band Hy Gear 11 to 25 mm · #8 Ideal Tridon Hy Gear 7/16 in to 1 in. SAE 8 Silver Hose Clamp Stainless Steel Band
7/16 to 1 in 8 Marine Hy Gear 11 to 25 mm · #8 Ideal Tridon Hy Gear 7/16 in to 1 in. SAE 8 Silver Hose Clamp Stainless Steel Marine
7/16 to 1 in 8 Band Hy Gear 11 to 25 mm · #8 Ideal Tridon Hy Gear 7/16 in to 1 in. SAE 8 Silver Hose Clamp Stainless Steel Band
1/2 to 1-1/16 in 10 Band — 13 to 27 mm · #10 Ideal Tridon 1/2 in to 1-1/16 in. SAE 10 Silver Hose Clamp Stainless Steel Band
1/2 to 1-1/4 in 12 Turn Key — 13 to 32 mm · #12 Ideal Tridon 1/2 in to 1-1/4 in. 12 Hose Clamp Stainless Steel Turn Key
9/16 to 1-1/16 in 10 Band — 14 to 27 mm · #10 Ideal Tridon 9/16 in. 1-1/16 in. SAE 10 Silver Hose Clamp Stainless Steel Band
9/16 to 1-1/4 in 12 Band Hy Gear 14 to 32 mm · #12 Ideal Tridon Hy Gear 9/16 in to 1-1/4 in. SAE 12 Silver Hose Clamp Stainless Steel Band
9/16 to 1-1/4 in 12 Band Hy Gear 14 to 32 mm · #12 Ideal Tridon Hy Gear 9/16 in to 1-1/4 in. SAE 12 Silver Hose Clamp Stainless Steel Band
11/16 to 1-1/2 in 16 Band — 17 to 38 mm · #16 Ideal Tridon 11/16 in. 1-1/2 in. SAE 16 Silver Hose Clamp Stainless Steel Band
11/16 to 1-1/2 in 16 Marine Hy Gear 17 to 38 mm · #16 Ideal Tridon Hy Gear 11/16 in to 1-1/2 in. SAE 16 Silver Hose Clamp Stainless Steel Marine
11/16 to 1-1/2 in 16 Band — 17 to 38 mm · #16 Ideal Tridon 11/16 in to 1-1/2 in. SAE 16 Silver Hose Clamp Stainless Steel Band
3/4 to 1-3/4 in 20 Band Hy Gear 19 to 44 mm · #20 Ideal Tridon Hy Gear 3/4 in. 1-3/4 in. SAE 20 Silver Hose Clamp Stainless Steel Band
3/4 to 1-3/4 in 20 Turn Key — 19 to 44 mm · #20 Ideal Tridon 3/4 in to 1-3/4 in. 20 Hose Clamp Stainless Steel Turn Key
3/4 to 1-3/4 in 20 Band Hy Gear 19 to 44 mm · #20 Ideal Tridon Hy Gear 3/4 in to 1-3/4 in. SAE 20 Silver Hose Clamp Stainless Steel Band
1 to 3 in 40 Band — 25 to 76 mm · #40 Ideal Tridon 1 in to 3 in. SAE 40 Hose Clamp Stainless Steel Band
1-1/16 to 2 in 24 Band Hy Gear 27 to 51 mm · #24 Ideal Tridon Hy Gear 1-1/16 in. 2 in. SAE 24 Silver Hose Clamp Stainless Steel Band
1-1/16 to 2 in 24 Band Hy Gear 27 to 51 mm · #24 Ideal Tridon Hy Gear 1-1/16 in to 2 in. SAE 24 Silver Hose Clamp Stainless Steel Band
1-1/4 to 2-1/4 in 28 Band Hy Gear 32 to 57 mm · #28 Ideal Tridon Hy Gear 1-1/4 in to 2-1/4 in. SAE 28 Silver Hose Clamp Stainless Steel Band
1-1/4 to 2-1/4 in 28 Turn Key — 32 to 57 mm · #28 Ideal Tridon 1-1/4 in to 2-1/4 in. 28 Hose Clamp Stainless Steel Turn Key
1-5/16 to 2-1/4 in 28 Band Hy Gear 33 to 57 mm · #28 Ideal Tridon Hy Gear 1-5/16 in to 2-1/4 in. SAE 28 Silver Hose Clamp Stainless Steel Band
1-1/2 to 2-1/2 in 32 Band Hy Gear 38 to 64 mm · #32 Ideal Tridon Hy Gear 1-1/2 in to 2-1/2 in. SAE 32 Silver Hose Clamp Stainless Steel Band
1-1/2 to 2-1/2 in 32 Marine Hy Gear 38 to 64 mm · #32 Ideal Tridon Hy Gear 1-1/2 in to 2-1/2 in. SAE 32 Silver Hose Clamp Stainless Steel Marine
1-1/2 to 3-1/2 in 48 Band Hy Gear 38 to 89 mm · #48 Ideal Tridon Hy Gear 1-1/2 in to 3-1/2 in. SAE 48 Silver Hose Clamp Stainless Steel Band
1-1/2 to 3-1/2 in 48 Marine Hy Gear 38 to 89 mm · #48 Ideal Tridon Hy Gear 1-1/2 in to 3-1/2 in. SAE 48 Silver Hose Clamp Stainless Steel Marine
1-3/4 to 2-3/4 in 36 Turn Key — 44 to 70 mm · #36 Ideal Tridon 1-3/4 in to 2-3/4 in. 36 Hose Clamp Stainless Steel Turn Key
1-3/4 to 3-3/4 in 52 Marine Hy Gear 44 to 95 mm · #52 Ideal Tridon Hy Gear 1-3/4 in to 3-3/4 in. SAE 52 Silver Hose Clamp Stainless Steel Marine
1-13/16 to 2-3/4 in 36 Band — 46 to 70 mm · #36 Ideal Tridon 1-13/16 in. 2-3/4 in. SAE 36 Silver Hose Clamp Stainless Steel Band
2 to 5 in 72 Snaplock — 51 to 127 mm · #72 Ideal Tridon 2 in. 5 in. SAE 72 Silver Hose Clamp Stainless Steel Snaplock
2-5/16 to 3-1/4 in 44 Band Hy Gear 59 to 83 mm · #44 Ideal Tridon Hy Gear 2-5/16 in to 3-1/4 in. SAE 44 Silver Hose Clamp Stainless Steel Band
2-1/2 to 3-1/2 in 48 Turn Key — 64 to 89 mm · #48 Ideal Tridon 2-1/2 in to 3-1/2 in. 48 Hose Clamp Stainless Steel Turn Key
2-1/2 to 4-1/2 in 64 Band Hy Gear 64 to 114 mm · #64 Ideal Tridon Hy Gear 2-1/2 in to 4-1/2 in. SAE 64 Silver Hose Clamp Stainless Steel Band
2-1/2 to 4-1/2 in 64 Turn Key — 64 to 114 mm · #64 Ideal Tridon 2-1/2 in to 4-1/2 in. 64 Hose Clamp Stainless Steel Turn Key
2-13/16 to 3-3/4 in 52 Band Hy Gear 71 to 95 mm · #52 Ideal Tridon Hy Gear 2-13/16 in. 3-3/4 in. SAE 52 Silver Hose Clamp Stainless Steel Band
3 to 5 in 72 Band Hy Gear 76 to 127 mm · #72 Ideal Tridon Hy Gear 3 in to 5 in. SAE 72 Silver Hose Clamp Stainless Steel Band
4 to 6 in 88 Band Hy Gear 102 to 152 mm · #88 Ideal Tridon Hy Gear 4 in to 6 in. SAE 88 Silver Hose Clamp Stainless Steel Band
4 to 6 in 88 Marine — 102 to 152 mm · #88 Ideal Tridon 4 in to 6 in. 88 Hose Clamp Stainless Steel Marine
4-1/2 to 6-1/2 in 96 Band Hy Gear 114 to 165 mm · #96 Ideal Tridon Hy Gear 4-1/2 in to 6-1/2 in. SAE 96 Silver Hose Clamp Stainless Steel Band
5 to 7 in 104 Band Hy Gear 127 to 178 mm · #104 Ideal Tridon Hy Gear 5 in to 7 in. SAE 104 Silver Hose Clamp Stainless Steel Band
5 to 7 in 104 Band Hy Gear 127 to 178 mm · #104 Ideal Tridon Hy Gear 5 in to 7 in. SAE 104 Silver Hose Clamp Stainless Steel Band

T-bolt hose clamps (23 sizes)

Clamp range Size no. Style Line Also written Product
1-3/8 to 1-9/16 in 138 T-Bolt, tongue bridge — 35 to 40 mm · #138 Ideal Tridon 1 - 3/8 in to 1-9/16 in. SAE 138 Hose Clamp With Tongue Bridge Stainless Steel Band T-B
1-1/2 to 1-5/8 in 150 T-Bolt, tongue bridge — 38 to 41 mm · #150 Ideal Tridon 1-1/2 in to 1-5/8 in. 150 Silver Hose Clamp With Tongue Bridge Stainless Steel Band T-B
1-5/8 to 1-7/8 in 163 T-Bolt, tongue bridge — 41 to 48 mm · #163 Ideal Tridon 1-5/8 in to 1-7/8 in. 163 Silver Hose Clamp With Tongue Bridge Stainless Steel Band T-B
1-3/4 to 2 in 175 T-Bolt, tongue bridge — 44 to 51 mm · #175 Ideal Tridon 1-3/4 in to 2 in. 175 Silver Hose Clamp With Tongue Bridge Stainless Steel Band T-Bolt
1.88 to 2.19 in 188 T-Bolt, tongue bridge — 48 to 56 mm · #188 Ideal Tridon 1.88 in to 2.19 in. SAE 188 Hose Clamp With Tongue Bridge Stainless Steel Band T-Bolt
2 to 2.31 in 200 T-Bolt, tongue bridge — 51 to 59 mm · #200 Ideal Tridon 2 in to 2.31 in. SAE 200 Silver Hose Clamp With Tongue Bridge Stainless Steel Band T-Bo
2-1/8 to 2-7/16 in 213 T-Bolt, tongue bridge — 54 to 62 mm · #213 Ideal Tridon 2-1/8 in to 2-7/16 in. 213 Silver Hose Clamp With Tongue Bridge Stainless Steel Band T
2-1/4 to 2.56 in 225 T-Bolt — 57 to 65 mm · #225 Ideal Tridon 2-1/4 in to 2.56 in. 225 Silver Hose Clamp Stainless Steel Band T-Bolt
2-3/8 to 2-11/16 in 238 T-Bolt — 60 to 68 mm · #238 Ideal Tridon 2-3/8 in to 2-11/16 in. 238 Silver Hose Clamp Stainless Steel Band T-Bolt
2-1/2 to 2-13/16 in 250 T-Bolt — 64 to 71 mm · #250 Ideal Tridon 2-1/2 in to 2-13/16 in. 250 Silver Hose Clamp Stainless Steel Band T-Bolt
2-5/8 to 2-15/16 in 263 T-Bolt, tongue bridge — 67 to 75 mm · #263 Ideal Tridon 2-5/8 in to 2-15/16 in. 263 Silver Hose Clamp With Tongue Bridge Stainless Steel Band T
2-3/4 to 3-1/16 in 275 T-Bolt — 70 to 78 mm · #275 Ideal Tridon 2-3/4 in to 3-1/16 in. SAE 275 Silver Hose Clamp Stainless Steel Band T-Bolt
2-7/8 to 3-3/16 in 288 T-Bolt, tongue bridge — 73 to 81 mm · #288 Ideal Tridon 2-7/8 in to 3-3/16 in. 288 Silver Hose Clamp With Tongue Bridge Stainless Steel Band T
3 to 3-5/16 in 300 T-Bolt — 76 to 84 mm · #300 Ideal Tridon 3 in to 3-5/16 in. 300 Silver Hose Clamp Stainless Steel Band T-Bolt
3-1/16 to 3-3/8 in 306 T-Bolt — 78 to 86 mm · #306 Ideal Tridon 3-1/16 in to 3-3/8 in. SAE 306 Hose Clamp Stainless Steel Band T-Bolt
3-1/4 to 3-9/16 in 325 T-Bolt — 83 to 90 mm · #325 Ideal Tridon 3-1/4 in to 3-9/16 in. 325 Silver Hose Clamp Stainless Steel Band T-Bolt
3-1/2 to 3-13/16 in 350 T-Bolt — 89 to 97 mm · #350 Ideal Tridon 3-1/2 in to 3-13/16 in. 350 Silver Hose Clamp Stainless Steel Band T-Bolt
3-9/16 to 3-7/8 in 356 T-Bolt — 90 to 98 mm · #356 Ideal Tridon 3-9/16 in to 3-7/8 in. SAE 356 Hose Clamp Stainless Steel Band T-Bolt
3-3/4 to 4-1/16 in 375 T-Bolt — 95 to 103 mm · #375 Ideal Tridon 3-3/4 in to 4-1/16 in. SAE 375 Hose Clamp Stainless Steel Band T-Bolt
4 to 4.31 in 400 T-Bolt — 102 to 109 mm · #400 Ideal Tridon 4 in to 4.31 in. SAE 400 Hose Clamp Stainless Steel Band T-Bolt
4-1/16 to 4-3/8 in 406 T-Bolt — 103 to 111 mm · #406 Ideal Tridon 4-1/16 in to 4-3/8 in. SAE 406 Hose Clamp Stainless Steel Band T-Bolt
4-1/4 to 4-9/16 in 425 T-Bolt — 108 to 116 mm · #425 Ideal Tridon 4-1/4 in to 4-9/16 in. SAE 425 Hose Clamp Stainless Steel Band T-Bolt
4-9/16 to 4-7/8 in 456 Spring Loaded T-Bolt — 116 to 124 mm · #456 Ideal Tridon 4-9/16 in to 4-7/8 in. SAE 456 Hose Clamp Stainless Steel Band Spring Loaded T-Bolt

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