Content with bolts

31 July 2018
Calculation of thread lengths Typical, unless specified in a product standard, dimensions for thread lengths (b) is calculated as follow: for l <= 125 mm: b = 2d + 6mm for 125 mm < l <= 200 mm: b = 2d + 12mm for l > 200mm: b = 2d + 25mm Where l is length of the bolt and b is the threaded part of the bolt. For bolt, where lengths l <= 0.
Read more about ISO 888 Thread lengths for ISO metric fasteners (bolts)

23 July 2018
T-Head bolts and nuts assembly Tee-Head bolts and hexagonal nuts in use for Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings Andrews Fasteners Limited together with its partnership factory, manufacturing and distributing T-Head bolts and nuts assemblies for use within the waterworks industry worldwide. We specialise in T-Head bolts in an exclusive range of sizes and finishes. Direct from the factory to the United States of America and Canada, we supply a minimum of 30 full containers of these products to our customers.
Read more about T-Head bolts and nuts assembly

23 July 2018
Dimensions of T-head (tee-head) bolt and nut Size in. A ±0,05 B +0,030 -0,074 C +0,25 -0,05 D* +3 -0 F H +0,00 –(as spec.) J +0,15 -0,03 R max. ⅝ x 3 1,50 0,625 3,0 2,00 0,625±0,04 1,062 -0,04 0,625 0,312 ¾ x 3½ 1,75 0,750 3,5 2,50 0,750±0,06 1,250 -0,06 0,750 0,375 ¾ x 4 1,75 0,750 4,0 3,00 0,750±0,06 1,250 -0,06 0,750 0,375 ¾ x 4½ 1,75 0,750 4,5 3,00 0,750±0,06 1,250 -0,06 0,750 0,375 ¾ x 5 1,75 0,750 5,0 3,00 0,750±0,06 1,250 -0,06 0,750 0,375 1 x 5½ 2,25 1,000 5,5 3,00 1,000±0,08 1,625 -0,08 1,000 0,500 1 x 6 2,25 1,000 6,0 3,00 1,000±0,08 1,625 -0,08 1,000 0,500 1¼ x 6 2,50 1,250 6,0 3,50 1,250±0,08 2,000 -0,08 1,250 0,625 1¼ x 6½ 2,50 1,250 6,5 3,5 1,250±0,08 2,000 -0,08 1,250 0,625 *) Bolts with dimension C longer than listed above are assumed to use the same thread length requirements as the longest specified.
Read more about Technical specification for T-head bolts (ANSI/AWWA C111/A21.11)

05 April 2016
Construction of the New Forth Bridge called Queensferry Crossing is moving forward. Only a 56 meter gap from the North Tower. As constructors revealed, the project remains on target which is scheduled to open in December 2016. Read more: Quarter a million bolts (supplied by Andrews Fasteners) on Queensferry Crossing
Read more about Queensferry Crossing (New Forth Bridge) on target

25 August 2015
We can offer: Product description Specification U Bolts to drawing Shearstud , Weld studs ISO 13918 DIN 17100, to drawing Wing Bolts, Eye Bolts (Dynamo Eye Bolt), Ring Bolt, Eyelet bolt DIN 580 to drawing Spring dowel to drawings Pin Assemblies to drawing Wire rope grips, bulldog grips BS 462 to drawing Grub Screw DIN 916 Coach Screw, Wood screw DIN 571 DIN 7997 to drawing Throughbolt see our Fixings section Half-round bolts, round bolts, coach bolts, scroll bolts, couplers, countersunk spider bolts, Expamet bolts, Barrel bolts to drawing Hook bolts, Turnbuckle, Beam clamps to drawing Resin Injected Bolts, Rawlok Bolt see our Fixings section Jordahl Tee Bolt see Jordahl website Cotter Split Pin DIN 94
Read more about Special Products

14 February 2015
Chemical composition as per ISO 898-1 for typical grades Class Material and Treatment C min. C max. P max. S max. B max. Tempering temp. [°C] 8.8 carbon steel with additives (e.g. b, mn or cr) quenched and tempered 0.15 (d) 0.40 0.025 0.025 0.003 425 8.8 carbon steel quenched and tempered 0.25 0.55 0.035 0.025 0.003 425 10.9 carbon steel with additives (e.g. b, mn or cr) quenched and tempered 0.
Read more about ISO 898-1 Carbon Steel and Alloy Steel - Bolts, screws and studs

25 August 2014
Construction fasteners products manufactured, supplied and distributed by Andrews Fasteners. As a fasteners specialist Andrews Fasteners can offer various fasteners and fixings starting from most popular up to more complicated and custom made requirements as per drawings. Our products range: BS EN 15048 Non-preloaded structural bolting assemblies (CE & UKCA Marked) Structural bolting (SB) assemblies, hexagon set screws (fully threaded), bolts (part-threaded), hexagon nuts, plain washers available in Self-Colour, Zinc Plated, Galvanised, Sherardized and other finishes.
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21 August 2014
Railway Track Fasteners Railway fasteners are a product group that Andrews Fasteners have specialized in for many years. To ensure that all fasteners are produced to our high standards, only Approved and ISO Certified manufacturers are used. All goods are produced to strict Andrews Fasteners Quality Control and Inspection Plans, with specially designed inspection equipment. Andrews Fasteners Inspectors are located permanently at the manufacturing factories to ensure the quality. Products can be supplied direct world wide from our partnering factory (after a full Quality Inspection has been conducted by an Andrews Fasteners Inspector) or supplied through Andrews Fasteners Limited located in United Kingdom.
Read more about Railway products

19 August 2014
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