Flange Bolt

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Flange Bolt

Introduction

DIN-6921

A flange bolt is a type of fastener that is used to connect two flanges or flanged components together. It has a circular head with a flat bearing surface, and a threaded shaft that extends from the head. The flange bolt is tightened using a wrench or socket, and the flange provides additional surface area for the wrench to grip, making it easier to apply torque. Flange bolts are commonly used in automotive, construction, and mechanical applications where flanged components need to be securely fastened together. They are available in a variety of sizes, materials, and finishes to suit different applications and requirements.

Flange Bolt

Steel Grades: 4.6, 8.8, 10.9, 12.9
Finish: Self, Black, Bright Zinc, Hot Dip Galvanized (ROHS)

Dimensions

Flange Bolt As per Din 6921
DIAMETER (d) 5 x 0.80 P 6 x 1.00 P 8 x 1.25 P 10 x 1.50 P 12 x 1.75 P 14 x 2.00 P 16 x 2.00 P 20 x 2.50 P
ACROSS FLAT (s) Min 7.78 9.78 12.73 14.73 15.73 17.73 20.67 26.67
Max 8.00 10.00 13.00 15.00 16.00 18.00 21.00 27.00
ACROSS CORNER (e) Min 8.71 10.95 14.26 16.50 17.62 19.86 23.15 29.87
WASHER OD (DC) Max 11.80 14.20 18.00 22.30 26.60 30.50 35.00 43.00
HEAD THICKNESS (K) Max 5.40 6.60 8.10 9.20 11.50 12.80 14.40 17.10
Length Min Max
16 15.65 16.35 FBT05016 FBT06016 FBT08016
20 19.58 20.42 FBT05020 FBT06020 FBT08020 FBT10020
25 24.58 25.42 FBT05025 FBT06025 FBT08025 FBT10025 FBT12025 FBT14025 FBT16025 FBT20025
30 29.58 30.42 FBT05030 FBT06030 FBT08030 FBT10030 FBT12030 FBT14030 FBT16030 FBT20030
35 34.50 35.50 FBT05035 FBT06035 FBT08035 FBT10035 FBT12035 FBT14035 FBT16035 FBT20035
40 39.50 40.50 FBT05040 FBT06040 FBT08040 FBT10040 FBT12040 FBT14040 FBT16040 FBT20040
45 44.50 45.50 FBT05045 FBT06045 FBT08045 FBT10045 FBT12045 FBT14045 FBT16045 FBT20045
50 49.50 50.50 FBT05050 FBT06050 FBT08050 FBT10050 FBT12050 FBT14050 FBT16050 FBT20050
55 54.40 55.60 FBT05055 FBT06055 FBT08055 FBT10055 FBT12055 FBT14055 FBT16055 FBT20055
60 59.40 60.60 FBT05060 FBT06060 FBT08060 FBT10060 FBT12060 FBT14060 FBT16060 FBT20060
65 64.40 65.60 FBT05065 FBT06065 FBT08065 FBT10065 FBT12065 FBT14065 FBT16065 FBT20065
70 69.40 70.60 FBT05070 FBT06070 FBT08070 FBT10070 FBT12070 FBT14070 FBT16070 FBT20070
75 74.40 75.60 FBT05075 FBT06075 FBT08075 FBT10075 FBT12075 FBT14075 FBT16075 FBT20075
80 79.40 80.60 FBT05080 FBT06080 FBT08080 FBT10080 FBT12080 FBT14080 FBT16080 FBT20080
85 84.40 85.60 FBT05085 FBT06085 FBT08085 FBT10085 FBT12085 FBT14085 FBT16085 FBT20085
90 89.30 90.70 FBT05090 FBT06090 FBT08090 FBT10090 FBT12090 FBT14090 FBT16090 FBT20090
95 94.30 95.70 FBT05095 FBT06095 FBT08095 FBT10095 FBT12095 FBT14095 FBT16095 FBT20095
100 99.30 100.70 FBT05100 FBT06100 FBT08100 FBT10100 FBT12100 FBT14100 FBT16100 FBT20100
105 104.30 105.70 FBT05105 FBT06105 FBT08105 FBT10105 FBT12105 FBT14105 FBT16105 FBT20105
110 109.30 110.70 FBT05110 FBT06110 FBT08110 FBT10110 FBT12110 FBT14110 FBT16110 FBT20110
120 119.30 120.70 FBT05120 FBT06120 FBT08120 FBT10120 FBT12120 FBT14120 FBT16120 FBT20120
130 129.20 130.80 FBT05130 FBT06130 FBT08130 FBT10130 FBT12130 FBT14130 FBT16130 FBT20130
140 139.20 140.80 FBT05140 FBT06140 FBT08140 FBT10140 FBT12140 FBT14140 FBT16140 FBT20140
150 149.20 150.80 FBT05150 FBT06150 FBT08150 FBT10150 FBT12150 FBT14150 FBT16150 FBT20150
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