STAINLESS STEEL FASTENERS | SELF DRILLING SCREWS | SS FASTENERS MANUFACTURERS – SURAT, GUJARAT, INDIA
STAINLESS STEEL FASTENERS | SELF DRILLING SCREWS | SS FASTENERS MANUFACTURERS – SURAT, GUJARAT, INDIA

METRIC & IMPERIAL THREAD SIZE GUIDE.

DIAMETER & THREAD PITCH CONVERSIONS

INCH METRIC CONVERSION (DIAMETER)
COARSE (UNC) FINE (UNF) COARSE (UNC) FINE (UNF) INCH METRIC
1/4″-20 1/4″-28 M6-1.00 M6-0.75 1/4″ M6
5/16″-18 5/16″-24 M8-1.25 M8-1.00 5/16″ M8
3/8″-16 3/8″-24 M10-1.50 M10-1.25 3/8″ M10
7/16″-14 7/16″-20 M12-1.75 M12-1.50 1/2″ M12
1/2″-13 1/2″-20 M14-2.00 M14-1.50 5/8″ M16
9/16″-12 9/16″-18 M16-2.00 M16-1.50 3/4″ M20
5/8″-11 5/8″-18 M20-2.50 M20-1.50 7/8″ M22
3/4″-10 3/4″-10 M22-2.50 M22-1.50 1″ M24
7/8″-9 7/8″-14 M24-3.00 M24-2.00 1-1/8″ M27
1″-8 1″-14 M27-3.00 M27-2.00 1-1/4″ M30
1-1/8″-7 1-1/8″-12 M30-3.50 M30-2.00 1-3/8″ M33
1-1/4″-7 1-1/4″-12 M36-4.00 M36-2.00 1-1/2″ M36
1-3/8″-6 1-3/8″-12 M42-4.50 M42-2.00 1-3/4″ M42
1-1/2″-6 1-1/2″-12 M48-5.00 M48-2.00 2″ M48

 


TENSILE STRENGTH COMPARISON

 

Imperial Grades

IBF/IN2 (PSI)

Metric Classes

MPA (N/MM2)
L9 — 180,000 PSI — HIGH TENSILE CLASS 12.9 — 1,200 MPA — HIGH TENSILE
SAE GRADE 8 — 150,000 PSI — HIGH TENSILE CLASS 10.9 — 1,034 MPA– HIGH TENSILE
SAE GRADE 5 — 120,000 PSI — HIGH TENSILE CLASS 8.8 — 827 MPA– HIGH TENSILE
STAINLESS CLASS 80 (304–316) — 116,000 PSI STAINLESS CLASS 80 (304-316) — 800 MPA
STAINLESS CLASS 70 (304-316) 101,000 PSI STAINLESS CLASS 70 (304-316) — 700 MPA
CLASS 5.8 — 520 MPA
STAINLESS CLASS 50 (NO MARKINGS) — 72,000 PSI STAINLESS CLASS 50 (NO MARKINGS) — 500 MPA
LOW CARBON — 62,000 PSI 427 MPA
58,015 PSI CLASS 4.6 – 400 MPA

 

STAINLESS STEEL FASTENERS

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