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T Nuts

T-slot nuts for aluminium profile, machine tables and fixture systems.

T Nuts - Melta Alloys fasteners manufacturer, supplier & exporter

Product Overview

T-slot nuts for aluminium profile, machine tables and fixture systems.

A nut is an internally threaded fastener that mates with a bolt or stud to develop clamp load. It must be matched to the bolt by thread size, pitch, and property class or grade so that the assembly fails in the bolt, not by thread stripping.

  • Matched to bolt and stud property classes
  • Prevailing torque options resist vibration loosening
  • Standard and heavy series available
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Technical Specifications

Product NameT Nuts
Product TypeNuts
MaterialStainless steel, carbon steel, alloy steel, duplex, super duplex, nickel alloys, brass, titanium, high tensile (subject to enquiry)
Grade304, 316, 2H, Gr 8, 8, 10, 12, A2-70, A4-70
Size RangeAvailable as per customer specification
Head / DriveT-slot profile
Thread TypeMetric coarse/fine (ISO 261, 6H) or UNC/UNF (ASME B1.1, 2B)
Manufacturing / Dimensional StandardDIN 508 (applicable standard confirmed against your order)
Finish / CoatingPlain, zinc plated, hot dip galvanized, black oxide, passivated, electro galvanized, nickel plated, or customer specified
Mechanical PropertiesPer material grade and standard; see table below
Testing / InspectionDimensional, visual, thread, mechanical and chemical checks as agreed with the order
CertificationMaterial Test Certificate on request; EN 10204 3.1 where requested

Standards

Standards commonly associated with T Nuts: DIN 508. The governing standard is confirmed against your purchase specification; not every standard is stocked or supplied in every size or grade.

Dimensions

Dimensions are manufactured according to the applicable dimensional standard and customer requirements. Share your drawing or size list for confirmation.

Materials and Grades

MaterialTypical gradesStandards
Stainless Steel304, 304L, 316, 316L, 321ASTM F593, F594, A193 B8/B8M/B6, A194 Gr 8/8M, A276, ISO 3506-1/-2
Carbon SteelClass 4.6, ASTM A307 Gr A / B, Class 8.8 / SAE Gr 5ASTM A307, A563, ISO 898-1/-2, SAE J429, DIN/ISO dimensional standards
Alloy SteelB7, B16, L7, 4340, A354 BDASTM A193 B7/B7M/B16, A194 2H/4, A320 L7, A354 BD, A574, ISO 898-1 10.9/12.9
Duplex SteelS31803 / S32205, S32304ASTM A276, A479, A182 F51/F60, NACE MR0175 / ISO 15156 where specified
Super Duplex SteelS32750, S32760, S32550ASTM A276, A479, A182 F53/F55, NACE MR0175 / ISO 15156 where specified
Nickel AlloysAlloy 600 (N06600), Alloy 625 (N06625), Alloy 718 (N07718), Alloy 825 (N08825), Monel 400 (N04400)ASTM B166, B446, B637, B425, B164, B865, B574, F467/F468
BrassC26000, C28000, C36000, C46400ASTM B16, B21, B134, F467/F468, DIN/ISO dimensional standards
TitaniumGrade 1, Grade 2, Grade 5, Grade 9, Grade 12ASTM B348, B381, F467/F468, ASME SB-348
High TensileClass 8.8, Class 10.9, Class 12.9, SAE Gr 5 / Gr 8ISO 898-1/-2, ASTM A193 B7, A354 BD, A325, A490, SAE J429 Gr 5/8

General industry information. Availability of a given grade is confirmed at enquiry stage. See individual material pages.

Mechanical Properties

Property class / gradeProof stress (MPa)Mates with
ISO 898-2 Class 8800Class 8.8 bolts
ISO 898-2 Class 101040Class 10.9 bolts
ISO 898-2 Class 121150Class 12.9 bolts
ASTM A194 2HPer ASTM A194ASTM A193 B7 bolts and studs
ASTM A194 Gr 8 / 8MPer ASTM A194ASTM A193 B8 / B8M
ISO 3506-2 A2-70 / A4-70700A2-70 / A4-70 bolts

Minimum or typical values per cited standards; they vary by grade, diameter, heat treatment and applicable standard.

Surface Finishes

FinishNotes
PlainUncoated; typical for stainless steel and non-ferrous
Zinc Plated / Electro GalvanizedThin zinc layer for indoor and mild environments
Hot Dip GalvanizedThick zinc coating for outdoor and structural use; allowances needed on mating threads
Black OxideMild corrosion resistance with oil, low reflectivity
PassivatedRemoves free iron from stainless steel to restore the passive film
Nickel PlatedCorrosion and wear resistance, appearance
Customer specifiedOther coatings on request

Manufacturing Process

Typical process route for this product type (general information; actual route depends on size, material and order):

  1. Bar or wire selection
  2. Cutting
  3. Forging or heading
  4. Tapping
  5. Heat treatment where required
  6. Surface treatment
  7. Inspection and testing
  8. Marking and packing

Inspection and Testing

  • Dimensional inspection against drawing or standard
  • Visual and surface inspection
  • Thread inspection with go / no-go gauges
  • Chemical composition verification and PMI where applicable
  • Mechanical testing: tensile, proof load, hardness
  • Coating thickness inspection where coated
  • Material Test Certificate; EN 10204 3.1 where requested

See the Quality page. Documentation scope is agreed at the quotation stage.

Applications and Industries

MachineryIndustrial EquipmentFabrication

Packaging

  • Cartons or wooden boxes on pallets, selected for weight and destination
  • Seaworthy export packing, with corrosion protection where required
  • Marking with grade, size and heat or batch number as per order

Customization

T Nuts can be quoted to your drawing, sample or specification, including non-standard sizes, lengths, threads, materials and finishes. Send details through the enquiry form.

Frequently Asked Questions

What materials are available for T Nuts?

T Nuts can be quoted in stainless steel, carbon steel, alloy steel, duplex, super duplex, nickel alloys, brass, titanium and high tensile grades, subject to size and standard.

Which standards can be supplied?

Typical references are DIN 508. The governing standard is confirmed against your specification.

What sizes are available?

Size range depends on product, material and standard. Share diameter, length and quantity for confirmation.

Can custom dimensions be manufactured?

Yes, to customer drawing or specification, subject to technical review.

What surface finishes are available?

Plain, zinc plated, hot dip galvanized, black oxide, passivated, electro galvanized, nickel plated or customer specified finishes.

Can material test certificates be supplied?

Material Test Certificates, including EN 10204 3.1 where requested, can be requested with the order. Scope is agreed at quotation.

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