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DIN 11851 Spanner Wrenches & Round Nuts

Deutsches Institut fur Normung (DIN) Fittings

Round Nuts + Wrenches

DIN Round Nuts

DIN round nuts fit over the threads of the welding male, and secure the welding liner and gasket inside the welding male. A DIN wrench is used to tighten the nut by hooking the wrench into the round nut grooves and turning in a clockwise direction. Round nuts are combined with other same DIN fittings based on the metric size.

DIN Wrenches

DIN wrenches hook into the grooves on the round nut and allow the nut to be fully tightened following hand tightening. While the DIN wrenches may overlap in size, it is generally recommended to use a 3 - 6 in. spanner wrench for nuts 80mm or larger.


Incorrect sizing is common with DIN 11851 fittings. Please review our DIN 11851 Guide for assistance in sizing your DIN 11851 fitting.

8 Items

Set Descending Direction
per page
SKU Item Price
DIN-WRENCH-1 DIN Round Nut Wrench 1.25 - 3 in. - SS304
$33.66 $26.93
DIN-WRENCH-2 DIN Round Nut Wrench 3 - 6 in. - SS304
$49.12 $39.30
DIN-13R-G400-DN100 DIN Round Nut | 100mm (4 in.) - SS304
$36.39 $29.11
DIN-13R-G100-DN25 DIN Round Nut | 25mm (1 in.) - SS304
$10.94 $8.75
DIN-13R-G150-DN40 DIN Round Nut | 40mm (1.5 in.) - SS304
$11.90 $9.52
DIN-13R-G200-DN50 DIN Round Nut | 50mm (2 in.) - SS304
$13.50 $10.80
DIN-13R-G250-DN65 DIN Round Nut | 65mm (2.5 in.) - SS304
$19.81 $15.85
DIN-13R-G300-DN80 DIN Round Nut | 80mm (3 in.) - SS304

8 Items

Set Descending Direction
per page

Return Policy

Glacier Tanks will accept returns of website standard stocking items, but only if:

  1. The item is new, unused, and in resalable condition;
  2. You notify Glacier Tanks and request a return authorization within 30 days of your receipt of the item;
  3. You return the item to Glacier Tanks, postage/shipping prepaid within 5 days of Glacier Tanks' return authorization (RMA);

Once your items have been received by Glacier Tanks and verified to be unused, we will refund your purchase price, less shipping costs. Returns will incur a 15% restocking fee. Return shipping costs are your responsibility and shall not be paid by Glacier Tanks.

The following items are non-returnable:

  • Special or Discounted items - labeled by button color:
    • Discontinued
    • Damaged
    • Non-conforming
    • Refurbished
    • Special Order
    • Drop Ship
    • Build-to-Order
  • Custom order
  • All Gaskets & Seals

Please be sure you understand and agree to any drawings supplied to you prior to purchase of custom or special order items. Payment of deposits for custom or special order items indicates your approval and acceptance of such custom or special order items.

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