Nylon Insert Lock Nuts Price - ASTM A325 Heavy Hex Structural Bolts – Dingshen Metalworks
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ASTM A325 / A325M Heavy Hex Structural Bolts The bolts are intended for use in structural connections. These connections are covered under the requirements of the Specification for Structural Joints Using ASTM A325 Bolts, approved by the Research Council on Structural Connections, endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute. Dimension: ASME B18.2.6 (Inch Size), ASME B18.2.3.7M (Metric Size) Thread Size: 1/2″-1.1/2″, M12-M36, ...
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Nylon Insert Lock Nuts Price - ASTM A325 Heavy Hex Structural Bolts – Dingshen Metalworks Detail:
ASTM A325 / A325M Heavy Hex Structural Bolts
The bolts are intended for use in structural connections. These connections are covered under the requirements of the Specification for Structural Joints Using ASTM A325 Bolts, approved by the Research Council on Structural Connections, endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.
Dimension: ASME B18.2.6 (Inch Size), ASME B18.2.3.7M (Metric Size)
Thread Size: 1/2″-1.1/2″, M12-M36, with various lengths
Grade: ASTM A325 / A325M Type-1
Finish: Black Oxide, Zinc Plating, Hot Dip Galvanized, Dacromet, and so on
Packing: Bulk about 25 kgs each carton, 36 cartons each pallet
Advantage: High Quality and Strict Quality Control, Competitive price,Timely delivery; Technical support, Supply Test Reports
Please feel free to contact us for more details.
In 2016, ASTM A325 was officially withdrawn and replaced by ASTM F3125, in which A325 now becomes a grade under the F3125 specification. The F3125 specification is a consolidation and replacement of six ASTM standards, including; A325, A325M, A490, A490M, F1852, and F2280.
Prior to its withdrawl in 2016, the ASTM A325 specification covered high strength heavy hex structural bolts from 1/2″ diameter through 1-1/2″ diameter. These bolts are intended for use in structural connections and therefore have shorter thread lengths than standard hex bolts.
This specification is applicable to heavy hex structural bolts only. For bolts of other configurations and thread lengths with similar mechanical properties, see Specification A449.
Bolts for general applications, including anchor bolts, are covered by Specification A449. Also refer to Specification A449 for quenched and tempered steel bolts and studs with diameters greater than 1-1/2″ but with similar mechanical properties.
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How to make an endless loop bow string jig for around $40 to $60.
https://www.seansoutdooradventures.com
Parts list – see below for a list of things you will need.
1 = 10 foot unistrut
One diamond circular saw blade to cut unistrut
(Cut 2, 1 foot sections off of unistrut for string jig arms, and cut two 4 inch pieces of unistrut for the angle iron used in string stretching.)
4 – 6 inch long 1/2 inch bolts
4 – 1/4 inch bolts about an inch and a half long with allen wrench head and smooth top section
(Have the 1/2 inch bolts tapped and then screw the 1/4 inch bolts down in the top leaving the smooth part exposed for wrapping string)
8 – 1/2 inch nuts for securing ½ inch bolts to unistrut (one on top and one under unistrut)
4 – 2 1/2 inch long 3/8 inch bolts (2 of these will be used for securing the string jig arms to sliding bolt inside unistrut, and 2 for securing each string stretching jig.)
4 – 3/8 inch nut with spring backing that fits into the unistrut
2 pieces of angle iron—you will use these with garment hook for string stretching.
2 garment hook bolts with nuts (these will go through the angle iron for string stretching)
4 – 1 inch long 3/8 inch bolts and nuts for attaching angle iron to unistrut
2 – 2 inch long 3/8 inch bolts, nuts, and washers for bolting unistrut to table
2 – small bolts about an inch long with 4 nuts and 2 washers – for the side of one jig arm for attaching loose string ends to (Diameter of bolt not important, whatever you have will work.)
If you don’t have them already, 1/2 inch diameter and 3/8 inch diameter drill bits for drilling holes, and also a drill bit that will fit the size of bolt you use for attaching loose string ends.
