Product range
Our product range covers standard and special bolts and screws, nuts, turned parts and fasteners
Product range
What RS Randack manufactures: product groups at a glance
Special fasteners to drawing
Hex bolts, socket head cap screws, T-head bolts and special head bolts, forged with uninterrupted grain flow, in property classes 5.6 to 12.9 and special strengths.
Reduced-shank bolts and fitted bolts
Reduced-shank bolts to DIN 2510 and to drawing, fitted bolts with fits up to H7, lengths typically up to 3,500 mm.
Special nuts
Hex, heavy hex, cap and slotted round nuts, forged and hot-pierced, internal threads tapped or turned, typically up to M80, matched to the bolt.
Turned parts
Flanges, bushes, sleeves, axles and shafts to drawing, typically up to 300 mm diameter and 3,500 mm length.
Cold-formed parts
Rivet studs, press-in parts, bushes and headless bolts made by multi-stage forming and two-blow heading for large series.
300 mm
Diameter of turned parts
3,500 mm
Length of turned parts
M180
M80
Internal threads
3,000 kN
−70 °C
In-house Charpy impact test
Typical limits in each case; beyond these on request.
From our range
Product examples
Examples from our production in Hagen, arranged by product group. Click any image to enlarge it; the caption names the product group. What we make and in which sizes is listed under each group, and the production steps behind it are described on the Production page.
Hot-forged parts
Heads, collars, square heads and nut blanks from our own drop forge, hot formed typically up to M64 with continuous grain flow: hex head, T-head, socket head and special head screws to drawing, even in small lots. More about our forge
Studs & bolts
Studs, stud bolts, threaded studs, reduced-shank bolts and threaded rods with rolled threads typically up to M180, metric, inch, UN and UNR, in materials from 42CrMo4 to B7, L7 and B16, with matching nuts and washers. More about thread rolling
Cold-formed parts
Rivet studs, press-fit parts, bushings, semi-hollow parts and headless pins, made by multi-station forming and two-blow heading for high-volume production from several tens of thousands of pieces, manufactured by qualified partners and inspected in Hagen. More about cold-formed parts
Turned parts
Flanges, bushings, sleeves, axles, shafts, parallel pins and trapezoidal thread sleeves to drawing, typically up to 300 mm in diameter and 3,500 mm in length, surface roughness down to Ra 1.6, fits to H7, with dimensional report and certificate. More about turned parts
Assemblies
Pressed and welded assemblies as well as assembled units made of bolts, nuts, washers and turned parts to drawing, all from a single source with documentation for each batch. Request a quote for assemblies
More product examples
Axles, shafts and reduced-shank bolts with fit dimensions in the micron range, special nuts, hydraulic blocks and parts to drawing that do not fit into any group. Send us an enquiry even if your part is not shown here: Contact and contact persons.
RS Randack Spezialschrauben
High-quality bolts, nuts and fasteners subject to third-party inspection
Our product range at a glance:
- Special fasteners, studs, bolts, nuts and turned parts to drawing or standard, forged, turned and thread-rolled in Hagen
- Turned parts typically up to 300 mm in diameter and 3,500 mm in length, hot forming typically up to M64, internal threads cut or turned, typically up to M80
- Rolled threads typically up to M180, larger sizes on request; metric, inch, UN and UNR, optionally rolled after heat treatment
- Property classes 5.6 to 12.9 to DIN EN ISO 898-1, special strength levels (e.g. 14.9) to customer specification
- Alloy steels for quenching and tempering to DIN EN ISO 683-2 (e.g. 34CrNiMo6, 30CrMoV9)
- Stainless, creep-resistant and heat-resistant materials (e.g. 1.4571, 1.4057, 1.7258, 1.7709, 1.7711, 1.4913, 1.4923 or 1.4828)
- American materials to ASTM/ASME specifications
(e.g. A193 Gr. B7 / B7M / B16 / B8, A194 2H / 4 / 7 / 8 / 2HM / 4M / 7M, A320 L7 / L7M) - Special materials and alloys (e.g. Inconel, Nimonic, titanium and Hastelloy)
- All heat treatments (including quenching and tempering, nitriding and induction hardening)
- All surface treatments (including zinc electroplating, phosphating, hot-dip galvanising, Delta-MKS zinc flake coating, nickel plating, PTFE coating and MoS₂ coating)
- Special versions (including micro-encapsulated thread locking and paint coatings)
SERVICE comes first
Urgent? You will hear from us within a few hours. In many cases, delivery within 24 hours is possible. Before quoting, production planning and quality assurance check the drawing, material and testing requirements for feasibility; on request, every lot is supplied with a 3.1 or 3.2 certificate. Delivery FCA Hagen (Incoterms 2020), in neutral packaging on request; visits to our production are welcome.
RS Randack products go to customers in Germany and abroad in the following industries:
Plant engineering including chemicals, petrochemicals and pressure equipment, energy and power plant engineering, shipbuilding and marine, railway and rolling stock, mining, aerospace, power transmission and mechanical engineering, plus oil and gas including offshore, nuclear technology, steel construction and infrastructure. What these industries demand and how we meet it: Industries and applications.
Frequently asked questions
Questions and answers about our product range
What does the RS Randack product range include?
Special fasteners, studs, stud bolts, reduced-shank bolts, fitted bolts, threaded rods, special nuts and turned parts to drawing or standard from our own production in Hagen; cold-formed parts for high-volume production via qualified partners.
What sizes are possible?
Turned parts typically up to 300 mm in diameter and 3,500 mm in length, rolled threads typically up to M180, internal threads cut or turned, typically up to M80, hot forming typically up to M64; larger sizes on request.
Does RS Randack also supply standard parts and accessories?
To go with our special fasteners, we supply nuts, washers, cap nuts and extension sleeves, either from the same production or sourced to match, so the complete joint comes from a single source.
Send us your enquiry for special fasteners to standard or drawing
Urgent? You will hear from us within a few hours.