Jiaxing City Qunbang Hardware Co., Ltd
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Carbon Steel ASTM F959 DTI Squirter Steel Flat Washer
Specification
These washers release an orange dye when tightened. They’re designed for use with A325 A490 structural screws, studs, and nuts and are often used for construction and exterior building applications.
ASTM F959 covers the requirements for compressible washer type direct tension indicators in diameters ranging from 1/2” to 1-1/2” inclusive. These washers are capable of indicating the achievement of a specified minimum bolt tension. They are available in two grades for use with A325 and A490 structural bolts and are also available in a weathering steel option for both grades.
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| Type 325 and 325-3 | For use with A325, F1852 and A325-3, F1852-3 structural bolts |
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| Type 490 and 490-3 | For use with A490, F2280 and A490-3, F2280-3 structural bolts |
| Diameter | Type 325 and 325-3, in kips | Type 490 and 490-3, in kips |
|---|---|---|
| 1/2 | 12 – 14 | 15 – 18 |
| 5/8 | 19 – 23 | 24 – 29 |
| 3/4 | 28 – 34 | 35 – 42 |
| 7/8 | 39 – 47 | 49 – 59 |
| 1 | 51 – 61 | 64 – 77 |
| 1-1/8 | 64 – 77 | 80 – 96 |
| 1-1/4 | 81 – 98 | 102 – 122 |
| 1-3/8 | 97 – 117 | 121 – 145 |
| 1-1/2 | 118 – 143 | 148 – 178 |
| Element | Type 325 and 490 | Type 325-3 and 490-3 |
|---|---|---|
| Carbon | 0.30 - 0.55% | |
| Manganese | 0.50 – 0.90% | |
| Phosphorous, max | 0.040% | 0.040% |
| Sulfur, max | 0.045% | 0.050% |
| Silicon | 0.15 – 0.35% | 0.15 – 0.35% |
| Chromium | 0.45 – 0.65% | |
| Nickel | 0.25 – 0.45% | |
| Copper | 0.25 – 0.45% | |
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PACKING
QBH BULK
20-25KG/CTN,36CTNS/PALLET
20-30KG/BAGS,36BAGS/PALLET
ONE TON/BOXES
50KG/ IRON DRUM,12 IRON DRUMS/PALLET
QBH SMALL PACKING
Packing in small boxes according to customer’s requirements
Packing in plastic bag according to customer’s requirements
QBH PALLET TYPE
SOLID WOOD FUMIGATION PALLET
EURO Pallet
THREE SPLINT PALLET
WOODEN BOX
The advantages of QBH