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Materials

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    - Plastic vs Standard

    - Properties of Plastics

    - Installation

    - Design Issues

    - Fastener Selection

    - Threaded Fastener Selection

  For Sheet Metal

  For Steel







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Threaded Fastener Selection

Fasteners matched to the properties of the material.

Selecting the right threaded fastener

The following chart is intended only as a starting point in the selection of fasteners. The fastener must be matched to the properties of the material. Drive to strip ratios, clamp retention, and other performance issues are directly affected by the fastener you choose. Please contact an Acument Global Technologies applications engineer for assistance in selecting the optimum fastener for your design.

Material Flexural Modulus
psi N/mm2
Polyethylene (PE) 150,000 1,030        
Polypropylene (PP) 200,000 1,380        
Polycarbonate (PC) 340,000 2,340        
ABS, 0-20% glass fill 350,000 2,410        
Polyamide 66 (PA) 350,000 2,410        
Acetal (AC) 400,000 2,760        
Polystyrene (PS) 430,000 2,960        
Polyprophylene, 40% talc fill (PP40) 500,000 3,450        
Polypheylene Sulfide 550,000 3,790        
ABS, 20% glass fill 650,000 4,480        
Polyamide 66, 12% glass fill 800,000 5,510        
Polycarbonate, 20% glass fill (PC20) 850,000 5,860        
Polycarbonate, 30% glass fill (PC30) 1,100,000 7,580        
Polybutylene Terephthalates 30% glass fill (PBT30) 1,100,000 7,580        
Polyamide 66, 30% glass fill (PA30) 1,200,000 8,270        
Liquid Crystal Polymer (LCP) 1,400,000 9,650        
  Polyphenylene Sulfide, 40% fill (PPS40) 1,700,000 11,720
On special request, contact application engineer for DuroPT® screw.
Phenolic, 20% glass fill 1,750,000 12,060
Polyester, 50% glass fill 2,100,100 14,480


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Acument™ Global Technologies Europe
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General Information:
infoEurope@acument.com