Accessories Archives | MF Fastener Industries LLC

Dowel Bar

Sat, 02 Mar 2024 11:11:05 +0000

We produce dowel bars in our Umm Al Quwain plant from plain round bar: cut to length, chamfered, cleaned and debonded on one half with grease or a bond-breaker sleeve as specified. Diameters 16 to 40 mm and lengths 300 to 600 mm are standard; epoxy coating and galvanizing are available for aggressive ground conditions.

Dowel Bar explained

A dowel bar is a smooth, straight steel bar placed across a contraction or construction joint in a concrete pavement or slab. It transfers wheel load from one slab to the next while allowing the joint to open and close with temperature, because one half is debonded and slides in the concrete. Correct alignment is critical, which is why dowels are usually supplied pre-assembled in dowel baskets.

Applications

Rigid concrete pavements — highways, airports and ports
Industrial floor slabs and warehouse floors
Container yards and heavy-duty hardstands
Bridge approach slabs
Precast slab connections
Car parks and access roads

Standards, grades & finishes

Bar to ASTM A615 Grade 40 / 60 or BS 4482 / EN 10025 S275, plain round, cut square and chamfered to avoid spalling. Debonding by grease, bituminous coating or plastic sleeve per the pavement specification. Epoxy coating to ASTM A775 or hot-dip galvanizing to ISO 1461 on request. Supplied loose, bundled by size or assembled into welded dowel baskets.

Anchor bolts, studs and plate washers are manufactured in our own ISO 9001:2015 plant in Emirates Modern Industrial Area, Umm Al Quwain, with calibrated in-house dimensional and thread inspection. Tensile, hardness and chemical testing is carried out by independent UAE-accredited laboratories, and EN 10204 3.1 certificates are issued with every batch. We supply across the GCC, MENA and Africa.

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Swage Stud (Cable Terminal)

Fri, 01 Mar 2024 12:49:07 +0000

Swage studs terminate a wire rope with a threaded end so it can be tensioned with a nut, turnbuckle or fork. We stock them in Umm Al Quwain for 3 to 26 mm cable, threaded M6 to M36 right- and left-hand, in 316 stainless and galvanized steel, alongside swage forks, eyes and turnbuckles.

Swage Stud (Cable Terminal) explained

A swage stud is a cylindrical fitting with a bore for the wire rope at one end and a threaded stud at the other. The bore is cold-swaged (compressed) onto the rope with a hydraulic swaging tool, giving a terminal with 90–100% of the rope breaking strength. Threaded swage studs connect to turnbuckle bodies, tensioners and brackets and are the standard terminal for architectural cable balustrades, guy wires, mast rigging and cable-net façades.

Applications

Stainless cable balustrades and handrails
Guy wires for masts, towers and tents
Cable-net façades and green walls
Yacht rigging and marine lifelines
Structural tie-rod and cable bracing
Shade sails and tensile membranes

Standards, grades & finishes

Studs in stainless 316 (A4) for 3 to 26 mm 1×19 / 7×7 / 7×19 wire rope, threads M6 to M36 RH and LH to ISO 965, also in galvanized carbon steel for structural guy wires. Swage efficiency 90–100% of rope MBL when swaged per manufacturer die chart. Supplied with swage forks, eyes, toggles and turnbuckles; swaging service and hydraulic tool hire available.

This item is imported from approved mills and held in stock in our Umm Al Quwain warehouse alongside the anchor bolts, studs and plate washers we manufacture ourselves, so complete bolt sets ship from one source. Tensile, hardness and chemical testing is carried out by independent UAE-accredited laboratories, and EN 10204 3.1 certificates are issued with every batch. We supply across the GCC, MENA and Africa.

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Dowel Basket

Mon, 25 Oct 2021 10:54:42 +0000

Dowel baskets are welded in our Umm Al Quwain plant: the dowel bars are held on a steel wire cradle at the specified spacing, height and alignment so they can be placed on the sub-base and concreted in without site fixing. Baskets are made to your slab thickness, dowel size and joint length, and delivered stacked and strapped.

Dowel Basket explained

A dowel basket (dowel bar assembly) is a factory-made cage that positions dowel bars across a pavement joint. Because the bars are welded parallel to each other and to the road surface, the joint can open freely and load transfer is consistent along its whole length. Baskets are pinned to the sub-base, the joint is sawn over the centre of the dowels after the pour, and the shipping wires are cut before concreting.

Applications

Jointed plain concrete pavements (JPCP) on highways
Airport runways, taxiways and aprons
Port container terminals and RTG lanes
Industrial floor construction and expansion joints
Bus lanes, toll plazas and truck stops
Precast slab and approach slab joints

Standards, grades & finishes

Cradle wire 5–8 mm to BS 4482 / ASTM A82, spot or MIG welded, with dowels debonded on one side. Assemblies conform to project specification, AASHTO / FHWA guidance or BS EN 13877 as required. Standard basket length 3.0 – 3.6 m in steps to suit lane width. Epoxy-coated or galvanized dowels available. Supplied with placing instructions.

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Steel D Shackle

Sun, 07 Jul 2019 12:47:01 +0000

Shackles are stocked in Umm Al Quwain in the sizes rigging crews use every day — D shackles and bow shackles from 0.5 t to 55 t WLL, screw pin and safety (bolt, nut and cotter) types, hot-dip galvanized alloy steel with 6:1 safety factor, plus A4 stainless for marine use — each with its test certificate.

Steel D Shackle explained

A D shackle (dee, chain shackle) is a narrow U-shaped link closed by a pin, used for straight-line pulls; a bow (anchor) shackle has a rounded body that accepts wider slings and multi-leg loads. Screw-pin shackles are quick to fit and suit non-permanent rigging; safety bolt-type shackles with a nut and cotter pin are for permanent or vibrating installations. Rated shackles carry the WLL, grade and manufacturer mark and are supplied with a certificate to EN 13889 or US Fed Spec RR-C-271.

Applications

Lifting slings, hoists and crane rigging
Container and cargo securing
Guy wires, stays and cable anchors
Mooring, marine and offshore rigging
Towing, recovery and winching
Structural cable and tension systems

Standards, grades & finishes

Shackles to EN 13889 Grade 6 (alloy) / US Fed Spec RR-C-271 Type IV, drop forged and heat treated, WLL 0.5 to 55 t (higher to order), safety factor 6:1, proof load 2 × WLL, hot-dip galvanized; stainless A4 (316) shackles to DIN 82101 for marine. Screw pin, safety bolt pin and round pin types. Manufacturer test certificate and CE marking supplied.

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Pipe Clamp

Fri, 29 Mar 2019 16:14:44 +0000

Pipe clamps hold pipes to walls, ceilings, strut channel and racks, and we stock the full range in Umm Al Quwain from ½" to 24" — EPDM rubber-lined clamps with M8 / M10 boss, heavy-duty two-bolt clamps, strut channel pipe clamps, saddle and U-bolt clamps — in zinc plated, hot-dip galvanized and stainless A2 / A4. Custom clamps are fabricated to drawing.

Pipe Clamp explained

A pipe clamp is a two-piece steel band that closes around a pipe and fixes it to a support. Rubber-lined (EPDM) clamps isolate vibration and noise and are standard for building services; heavy-duty clamps with two bolts per side carry water-filled process lines; strut clamps snap into 41 mm channel; saddle clamps fix small pipes and conduits flat to a surface. Clamp size is chosen by pipe outside diameter, with the liner allowing for insulation where needed.

Applications

Plumbing, chilled water and fire-fighting pipework
HVAC refrigerant lines and condensate drains
Process piping on racks and sleepers
Electrical conduit and cable ducting
Gas, compressed air and vacuum lines
Insulated pipe supports (with insulation blocks)

Standards, grades & finishes

Clamps in zinc-plated steel (DIN 4109 acoustic type with EPDM liner), hot-dip galvanized to ISO 1461 for external, stainless A2 / A4 for plant rooms and coast. Sizes ½" to 24" (15 to 600 mm OD), bosses M8 / M10 / M12 with combi-nut for threaded rod. Heavy-duty clamps to DIN 3567 (Form A / B) and strut clamps to manufacturer system dimensions. Load ratings per manufacturer table; custom clamps fabricated and galvanized to order.

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Grub Screw (Set Screw) DIN 916

Wed, 27 Mar 2019 06:51:48 +0000

Grub screws lock pulleys, collars and couplings onto shafts, and we stock the full DIN socket set screw range in Umm Al Quwain from M2 to M30 — cup, flat, cone, dog and knurled cup points — in 45H alloy steel (black) and stainless A2 / A4, with hex and Torx drives.

Grub Screw (Set Screw) DIN 916 explained

A grub screw (socket set screw) is a headless screw with a hex socket at one end and a shaped point at the other. Tightened through a threaded hole in a hub, the point bears on the shaft and stops the hub rotating or sliding. Cup point (DIN 916) bites into the shaft for the strongest grip; flat point (DIN 913) for minimal marking and frequent adjustment; cone point (DIN 914) locates in a drilled dimple; dog point (DIN 915) enters a slot or hole for positive drive.

Applications

Pulleys, sprockets and couplings on shafts
Bearing collars and locking rings
Handles, knobs and hand-wheels
Gearbox and motor adaptors
Conveyor rollers and drive shafts
Door handles, locks and hardware

Standards, grades & finishes

Screws to DIN 916 / ISO 4029 (cup), DIN 913 / ISO 4026 (flat), DIN 914 / ISO 4027 (cone), DIN 915 / ISO 4028 (dog), knurled cup, material alloy steel 45H (ISO 898-5) black oxide, stainless A2 / A4 to ISO 3506-3, brass. Threads ISO 965 6g coarse; fine thread and imperial ASME B18.3 to order. Torx (ISO 10664) drive available.

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Dowel Pin (Parallel Pin) ISO 8734

Tue, 26 Mar 2019 06:57:57 +0000

Dowel pins locate one part precisely against another — die sets, machine tables, gearbox housings — and we stock ISO 8734 / DIN 6325 hardened and ground pins in Umm Al Quwain from 2 to 30 mm diameter and 4 to 200 mm long, in alloy steel (60 HRC) and stainless A1, plus DIN 7 soft pins and extractable (tapped) pins.

Dowel Pin (Parallel Pin) ISO 8734 explained

A dowel pin is a solid cylindrical pin ground to a close tolerance (m6 for press fit, h6 for slip fit) with chamfered or radiused ends. Pressed into a reamed hole, it provides exact alignment and carries shear between the parts, so bolts only have to clamp. ISO 8734 Type A (DIN 6325) is through-hardened to 60 HRC for repeated assembly; DIN 7 is unhardened for general use; ISO 8735 has an internal thread for extraction from blind holes.

Applications

Press tools, die sets and mould bases
Machine tool tables, fixtures and jigs
Gearbox, pump and engine housings
Robot flanges and automation modules
Precision assemblies in aerospace and defence
Woodworking and furniture jigs

Standards, grades & finishes

Pins to ISO 8734 Type A / DIN 6325 (hardened, m6), ISO 2338 / DIN 7 (unhardened, h8 / m6), ISO 8735 / DIN 7979 (internal thread), material alloy steel 100Cr6 hardened 58–62 HRC, stainless A1 / A4 (ISO 2338). Diameters 2 to 30 mm, lengths 4 to 200 mm. Ground finish Ra ≤ 0.8 µm. Imperial ASME B18.8.2 to order.

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