Content with standards

25 January 2022
Dimensions for selected, most popular sizes Size (d) M12 M16 M20 M22 M24 M27 M30 M33 M36 M39 Pitch 1.75 2 2.5 2.5 3 3 3.5 3.5 4 4 Length tolerances Nominal length (l) 3000 2000 1000 Minimum/Maximum ±10.5 ±7.5 ±4.5 Nominal length (l) 500-420 400-320 300-260 240-190 Minimum/Maximum ±1.
Read more about DIN 976-1 Basic Dimensions for fully threaded studding, threaded bar, stud bolt

22 November 2021
Chemical Composition As per DIN 267-4 Class C max. Mn min. P max. S max. 4, 5 and 6 0.50 - 0.110 0.150 8 0.58 0.30 0.060 0.150 10 0.58 0.30 0.048 0.058 12 0.58 0.45 0.048 0.058 Mechanical Properties As per DIN 267-4 Property Class 4 Class 5 Class 6 Class 8 Class 10 Class 12 Proof load stress
Read more about DIN 267 Mechanical properties for Nuts

22 November 2021
DIN 934 Hexagon nuts – Basic dimensions Selected small sizes Dimension (d) M4 M5 M6 M8 M10 Thread pitch (pa) 0.7 0.8 1 1.25 1.5 m 2.9-3.2 3.7-4 4.7-5 6.14-6.5 7.64-8 dw (min) 5.8 6.8 8.8 11.3 15.3 s 6.78-7 7.78-8 9.78-10 12.73-13 16.73-17 e (min) 7.66 8.79 11.05 14.38 18.9 Selected standard sizes Dimension (d) M12 M16 M20 M22 M24 M27 M30 M33 M36 Thread pitch
Read more about DIN 934 Hexagon nuts - Basic dimensions

07 November 2021
Type FF – FloorFast – Lindapter Size Product Code Floorplate Thickness t [mm] Flange Thickness Standard [mm] Hexagon key [mm] M08 FF08 4.5-12 3-15 5 M10 FF10 5-12 3-15 6 M12 FF12 6-12 3-15 8 Type FF FloorFast - Datasheet & Installation Guide DownloadPDF
Read more about Lindapter FloorFast - basic dimensions

07 November 2021
Type LB2 – Lindibolt 2 – Lindapter Bolt Size Z Product Code Length Y [mm] Hole d [mm] Clamp length W [mm] Projection P [mm] M10 LB10 74 11-11.5 7-30 7.5-10 M12 LB12 85 13-13.5 10-36 9-12 M16 LB16 105 17-17.5 12-48 12-16 M20 LB20 128 21-21.5 14-60 15-20 M24 LB24 158 25-25.
Read more about Lindapter Lindibolt 2 - basic dimensions

22 July 2021
BS EN 14399 Part 5: Plain washers – Basic dimensions Selected sizes used for CE (UKCA) Marking under EN 14399 Size (d) M12 M16 M20 M22 M24 M27 M30 M36 d1 13-13,27 17-17,27 21-21,33 23-23,33 25-25,33 28-28,52 31-31,62 37-37,62 d2 23,48-24 29,48-30 36,38-37 38,38-39 43,38-44 49,00-50 54,80-56 64,80-66 h (nom.) 3 4 4 4 4 5 5 6 h 2,7-3,3 3,7-4,3 3,7-4,3 3,7-4,3 3,7-4,3 4,4-5,6 4,4-5,6 5,4-6,6 Dimensions in millimetres DownloadPDF
Read more about BS EN 14399-5 Plain washers - Basic dimensions

31 July 2018
Calculation of thread lengths Typical, unless specified in a product standard, dimensions for thread lengths (b) is calculated as follow: for l <= 125 mm: b = 2d + 6mm for 125 mm < l <= 200 mm: b = 2d + 12mm for l > 200mm: b = 2d + 25mm Where l is length of the bolt and b is the threaded part of the bolt.
Read more about ISO 888 Thread lengths for ISO metric fasteners (bolts)

23 July 2018
Dimensions of T-head (tee-head) bolt and nut Size in. A ±0,05 B +0,030 -0,074 C +0,25 -0,05 D* +3 -0 F H +0,00 –(as spec.) J +0,15 -0,03 R max. ⅝ x 3 1,50 0,625 3,0 2,00 0,625±0,04 1,062 -0,04 0,625 0,312 ¾ x 3½ 1,75 0,750 3,5 2,50 0,750±0,06 1,250 -0,06 0,750 0,375 ¾ x 4 1,75 0,750 4,0 3,00 0,750±0,06 1,250 -0,06 0,750 0,375 ¾ x 4½ 1,75 0,750 4,5 3,00 0,750±0,06 1,250 -0,06 0,750 0,375 ¾ x 5 1,75 0,750 5,0 3,00 0,750±0,06 1,250 -0,06 0,750 0,375 1 x 5½ 2,25 1,000 5,5 3,00 1,000±0,08 1,625 -0,08 1,000 0,500 1 x 6 2,25 1,000 6,0 3,00 1,000±0,08 1,625 -0,08 1,000 0,500 1¼ x 6 2,50 1,250 6,0 3,50 1,250±0,08 2,000 -0,08 1,250 0,625 1¼ x 6½ 2,50 1,250 6,5 3,5 1,250±0,08 2,000 -0,08 1,250 0,625 *) Bolts with dimension C longer than listed above are assumed to use the same thread length requirements as the longest specified.
Read more about Technical specification for T-head bolts (ANSI/AWWA C111/A21.11)

04 January 2017
Nord-Lock – Dimension list for popular sizes of Steel Washers Washer size Bolt Size NL8 M8 NL10 M10 NL12 M12 NL16 M16 NL20 M20 NL22 M22 NL24 M24 NL27 M27 NL30 M30 NL36 M26 Internal diameter (id) 8.7 (+/-) 0.1 10.7 (+/-) 0.5 13.0 (+/-) 0.5 17.0 (+/-) 0.5 21.4 (+/-) 0.5 23.4 (+/-) 0.5 25.3 (+/-) 0.5 28.4 (+/-) 0.5 31.4 (+/-) 0.
Read more about Nord-lock washers - Dimensions for Washers

23 November 2016
Nut face washers and bolt face washers – basic dimensions According to EN 14399-9:2018 Dimensions of nut face washers (HN) Size (d) M12 M16 M20 M22 M24 M27 M30 M36 Internal diameter (d1) 12.1-12.35 16.1-16.35 20.1-20.40 22.3-22.60 24.2-24.50 27.2-27.55 30.2-30.55 36.2-36.55 External diameter (d2) 22.7-24 27.7-29 34.4-36 37.4-39 41.4-43 46.4-48 50.1-52 60.1-62 Thickness (h) 2.7-4.3 3.7-4.3 3.7-4.3 3.7-4.3 3.7-4.3 4.
Read more about BS EN 14399-9 Basic dimensions for Nut face and bolt face washers