7 catalogued sizes, dimensioned to ISO 15072. Pick any row and the technical drawing redraws to it.
Fine-Thread Hex Flange Bolts, Small Series to ISO 15072 are catalogued in pitch 1-1.5 mm, with wide 10.95-23.15 mm, head h 8.5-15.2 mm, spanner 10-21 mm. 7 sizes are held in the table below, and the technical drawing redraws to whichever row you select.
Standard
ISO 15072
Pitch
1-1.5 mm
Wide
10.95-23.15 mm
Head H
8.5-15.2 mm
Catalogued sizes
7
Dimensions are nominal values from the governing standard. Confirm the tolerance class for your application before ordering.
Fine-Thread Hex Flange Bolts, Small Series — ISO 15072
AISI 420SUS420J1 · SUS420J2 · EN 1.4021 · EN 1.4028 · 20Cr13 · 30Cr13
AISI 431SUS431 · EN 1.4057 · X17CrNi16-2
C1
C3
C4
AISI 440A
AISI 440B
AISI 440CSUS440C · EN 1.4125
Ferritic Stainless Steel
AISI 430SUS430 · EN 1.4016 · X6Cr17 · 10Cr17
F1
AISI 434
AISI 444
Precipitation-Hardening Stainless Steel
17-4 PHAISI 630 · UNS S17400 · SUS630 · EN 1.4542 · X5CrNiCuNb16-4
15-5 PHUNS S15500
17-7 PHUNS S17700
Duplex and Super Duplex Stainless Steel
Duplex 2205UNS S31803 · UNS S32205 · EN 1.4462
Super Duplex 2507UNS S32750 · EN 1.4410
D2
D4
D6
D8
Lean Duplex 2101UNS S32101
Super Duplex S32760UNS S32760 · EN 1.4501
Carbon Steel
Low-Carbon Steel
SAE 1006
SAE 1008
SAE 1010
SAE 1018
SAE 1020
Q195
Q235
SAE 1012
SAE 1015
Q215
ML08
ML08Al
ML10
ML15
ML20
SWRCH6A
SWRCH8A
SWRCH10A
SWRCH12A
SWRCH15A
SWRCH18A
Medium-Carbon Steel
SAE 1035
SAE 1045
S45C
C45
SAE 1030
SAE 1040
SAE 1050
30
35
40
45
50
S35C
S40C
S50C
C35
C40
High-Carbon Steel
SAE 1060
SAE 1070
65Mn
SAE 1065
SAE 1075
SAE 1080
SAE 1085
SAE 1090
SAE 1095
60
65
70
75
80
85
Cold-Heading Steel
SWRCH22A
10B21
SWRCH22K
SWRCH25K
SWRCH30K
SWRCH35K
SWRCH40K
ML20Mn
ML25
ML30
ML35
ML40
15B25
Alloy Steel
Chromium Steel
40Cr
45Cr
AISI 5140
SAE 5140
AISI 5120
SAE 5120
SCr420
SCr440
Chromium-Molybdenum Steel
35CrMo
42CrMo
AISI 4140
SCM435
SCM440
42CrMo4
30CrMo
AISI 4130
SAE 4130
SAE 4140
AISI 4142
AISI 4145
SCM415
SCM420
SCM445
EN 1.7220
EN 1.7225
25CrMo4
34CrMo4
Nickel-Chromium-Molybdenum Steel
AISI 4340
SAE 4340
40CrNiMo
SNCM439
EN 1.6511
36CrNiMo4
Boron Alloy Steel
10B22
10B21
15B21
15B25
20MnTiB
20Mn2B
35VB
40MnB
Bearing Steel
Bearing Steel
GCr15
AISI 52100SAE 52100 · UNS G52986
SUJ2
100Cr6EN 1.3505
GCr15SiMn
Spring Steel
Carbon Spring Steel
SAE 1065
SAE 1070
SAE 1075
SAE 1080
SAE 1095
65
70
75
80
65Mn
Silicon-Manganese Spring Steel
60Si2Mn
60Si2MnA
SUP6
SUP7
Chromium-Vanadium Spring Steel
50CrVA
SAE 6150
AISI 6150
SUP10
Stainless Spring Steel
AISI 301
SUS301
EN 1.4310
AISI 302
AISI 304
AISI 316
17-7 PH
Aluminum and Aluminum Alloys
Commercially Pure Aluminum
1050
1060
1070
1100
2xxx Series Aluminum
2024
2011
2014
2017
5xxx Series Aluminum
5052
5083
5754
6xxx Series Aluminum
6061
6061-T6
6063
6082
6082-T6
7xxx Series Aluminum
7075
7075-T6
7005
7050
7075-T73
Brass
Free-Cutting Brass
C36000
H62
HPb59-1
C3601
C3602
C3604
CuZn36Pb3
CuZn39Pb3
EN CW614N
EN CW617N
H65
Lead-Free Brass
C69300
C27450
CW510L
CW511L
Naval Brass
C46400
CuZn39Sn1
Bronze
Silicon Bronze
C65500
C65100
C65600
Phosphor Bronze
C51000
C52100
CuSn6
CuSn8
Aluminum Bronze
C95400
C95500
C63000
CuAl10Ni5Fe4
Copper
Copper
C11000
T2
C10100
C10200
C12200
T1
TU1
TU2
Titanium and Titanium Alloys
Commercially Pure Titanium
Grade 2
Grade 1
Grade 3
Grade 4
TA1
TA2
TA3
Alpha-Beta Titanium Alloys
Grade 5
Ti-6Al-4V
TC4
UNS R56400
Low-Interstitial Grade
Grade 23
Ti-6Al-4V ELI
UNS R56407
Other Titanium Fastener Alloys
Ti-6Al-6V-2Sn
Ti-6Al-2Sn-4Zr-2Mo
Beta-C titanium
Ti-10V-2Fe-3Al
Nickel and Nickel Alloys
Commercially Pure Nickel
Nickel 200
UNS N02200
Nickel 201
UNS N02201
Inconel Alloys
Inconel 625UNS N06625
Inconel 718UNS N07718
Inconel 600UNS N06600
Inconel 601UNS N06601
Inconel 686UNS N06686
Inconel X-750UNS N07750
Monel Alloys
Monel 400UNS N04400
Monel K-500UNS N05500
Hastelloy Alloys
Hastelloy C-276UNS N10276
Hastelloy C-22UNS N06022
Hastelloy B-2UNS N10665
Hastelloy B-3UNS N10675
Hastelloy XUNS N06002
Other Nickel Alloys
Alloy 20UNS N08020
Alloy 625
Alloy 718
Alloy 825UNS N08825
Alloy 925UNS N09925
Iron-Nickel and High-Temperature Alloys
A286
A-286
UNS S66286
EN 1.4980
Invar
Invar 36
Alloy 36
UNS K93600
FeNi36
Alloy 42
Alloy 42
UNS K94100
FeNi42
Tool Steel and Specialty Hardened Steel
Tool Steel and Specialty Hardened Steel
AISI D2
AISI H13
SKD11
Cr12MoV
AISI O1
AISI A2
AISI S7
SKD61
9CrSi
Structural and Construction Steel
Structural and Construction Steel
ASTM A36
Q235B
Q355B
S355JR
Q235C
Q355C
S235JR
S275JR
S355J2
Applications & Industries
The sectors that buy Fine-Thread Hex Flange Bolts to ISO 15072, and the duty each one buys them for. Stocked from M8x1 to M16x1.5.
Industries that specify Fine-Thread Hex Flange Bolts
Hydraulic equipmentpump and valve bodies where fine threads hold in thin walls.
Motorcycle assemblyengine covers with limited socket clearance.
Machinery guardingflanged fixings that spread load on thin sheet.
Automotive powertrainoil pans, covers and brackets with fine-thread tapped holes.
Energy & infrastructureTower, pipework, switchgear and plant fixings specified for long service life and inspectable joints.
Maintenance & MROStocked replacements matched to an existing property class, thread and finish.
Typical applications
using a fine pitch for finer preload adjustment
fitting where a standard flange head will not clear
resisting vibration loosening with a larger bearing face
clamping without a separate washer on soft or painted faces
bolting brackets, motors and gearboxes to a frame
assemblies that are dismantled for service and re-torqued
Service conditions to specify against
Marine and coastal
Available in A4 (316) stainless for chloride exposure — coastal structures, pool halls, water treatment and deck hardware, where A2 will eventually pit.
High load
Supplied in ISO 898-1 property classes, so the joint can be designed to a stated proof load and tightened to a calculated torque rather than by feel.
Torque and preload
The joint is designed around bolt tension, so lubrication, coating and the friction coefficient all change the torque figure — state them together.
Where to use something else
Do not mix fine-thread flange bolts into coarse-thread holes; they start by hand and then cross-thread under the wrench.
Do not use a machine thread into unthreaded sheet or timber; use a tapping screw, rivet nut or insert made for that parent material.
Customize the parameters below — every spec field is editable, and the drawing redraws to match the values you choose. Changing the size will snap the other fields to that size's standard values; you can then override any individual value.
Dimensioned line drawing of M8x1 Fine-Thread Hex Flange Bolts, Small Series to ISO 15072. Side view and top view, drawn to the dimensions in the table below and redrawn for any size selected.
Pitch P (mm)
1
a_max (mm)
3
a_min (mm)
1
b_0 (mm)
35
b_1 (mm)
22
b_2 (mm)
28
b_3 (mm)
0
c_min (mm)
1.2
d_a_max_F (mm)
9.2
d_a_max_U (mm)
10
d_c_max (mm)
17
d_s_max (mm)
8
Sends the selected values to the quote form below.
Request a Quotation for Fine-Thread Hex Flange Bolts, Small Series
The form below follows the current technical drawing configuration. Change the drawing values above and the request details update automatically.
Dimensions & Specifications (ISO 15072)
Every row below is a starting point for the customizer above — pick any size and the drawing will redraw to that row.
Size
Pitch P (mm)
a_max (mm)
a_min (mm)
b_0 (mm)
b_1 (mm)
b_2 (mm)
b_3 (mm)
c_min (mm)
d_a_max_F (mm)
d_a_max_U (mm)
d_c_max (mm)
d_s_max (mm)
d_s_min (mm)
d_v_max (mm)
d_w_min (mm)
Width across corners e (mm)
Head height k (mm)
k_w_min (mm)
l_f_max (mm)
r_1_min (mm)
r_2_max (mm)
r_3_max (mm)
r_3_min (mm)
r_4_ref (mm)
Width across flats s (mm)
s_min (mm)
v_max (mm)
v_min (mm)
Length range l (mm)
Reference standard
M8x1
1
3
1
35
22
28
0
1.2
9.2
10
17
8
7.78
8.8
14.9
10.95
8.5
3.8
2.1
0.4
0.5
0.36
0.16
5.7
10
9.78
0.25
0.1
16~80
ISO 15072
M10x1
1
3
1
40
26
32
0
1.5
11.2
12.5
20.8
10
9.78
10.8
18.7
14.26
9.7
4.3
2.1
0.4
0.6
0.45
0.2
5.7
13
12.73
0.3
0.15
20~100
ISO 15072
M10x1.25
1.25
3
1
40
26
32
0
1.5
11.2
12.5
20.8
10
9.78
10.8
18.7
14.26
9.7
4.3
2.1
0.4
0.6
0.45
0.2
5.7
13
12.73
0.3
0.15
20~100
ISO 15072
M12x1.25
1.25
4.5
1.5
45
30
36
0
1.8
13.7
15.2
24.7
12
11.73
12.8
22.5
16.5
12.1
5.4
2.1
0.6
0.7
0.54
0.24
5.7
15
14.73
0.35
0.15
25~120
ISO 15072
M12x1.5
1.5
4.5
1.5
45
30
36
0
1.8
13.7
15.2
24.7
12
11.73
12.8
22.5
16.5
12.1
5.4
2.1
0.6
0.7
0.54
0.24
5.7
15
14.73
0.35
0.15
25~120
ISO 15072
(M14x1.5)
1.5
4.5
1.5
50
34
40
0
2.1
15.7
17.7
28.6
14
13.73
14.8
26.4
19.86
12.9
5.6
2.1
0.6
0.9
0.63
0.28
5.7
18
17.73
0.45
0.2
30~140
ISO 15072
M16x1.5
1.5
4.5
1.5
55
38
44
57
2.4
17.7
20.5
32.8
16
15.73
17.2
30.6
23.15
15.2
6.8
3.2
0.6
1
0.72
0.32
8.8
21
20.67
0.5
0.25
35~160
ISO 15072
Fine-Thread Hex Flange Bolts, Small Series conform to ISO 15072. As bolts, they are specified by the dimensions in the table below; this page also covers materials, finishes and typical uses.
What Are Fine-Thread Hex Flange Bolts, Small Series?
Fine-Thread Hex Flange Bolts, Small Series are bolts defined by ISO 15072. They are selected by thread size and the dimensional characteristics shown below, and are available in a range of materials and finishes to suit the application and environment.
Materials & Finishes
Common materials include carbon steel (typically zinc plated or hot-dip galvanized), alloy steel in property classes 8.8, 10.9 and 12.9, and stainless steel A2 (304) or A4 (316) for corrosion resistance. Specify the material, property class and surface finish appropriate to your load and environment.
Specification Guides
Each size, material and standard of Fine-Thread Hex Flange Bolts, Small Series has its own reference page with the figures for that one configuration.
Goes With
Hardware commonly specified alongside Fine-Thread Hex Flange Bolts, Small Series.
Pricing
Fine-Thread Hex Flange Bolts, Small Series are supplied to order. Pricing starts from approximately US$0.10 per piece for standard sizes in carbon steel; final pricing depends on size, material, finish and order quantity (MOQ applies). Submit your exact configuration with the quote form above.
Custom manufacturing · Made to drawing
Need a fine-thread hex flange bolts, small series outside the standard range?
Where the standard stops, the drawing takes over: fine pitches, left-hand threads, partial threading, and property classes above the catalogued grade where material and heat treatment allow. Made by cold heading or hot forging.
Minimum order from 2,000 pieces; samples within 7 days of drawing approval.
This part is cold-formed, threaded, heat-treated and finished in-house. The stages below are where its class and finish are actually decided.
01
Cold heading
Wire rod is drawn to size and cold-formed into blanks. Forming rather than cutting keeps the grain flow continuous around the head, which is where a bolt is most likely to fail.
Head dimensions and under-head radius checked at set-up and per shift.
02
Thread rolling
Threads are rolled between hardened dies rather than cut. Rolled threads are stronger in fatigue than cut threads and hold pitch and flank angle far more consistently across a batch.
Go / no-go ring gauges to ISO 965 tolerance class 6g.
03
Heat treatment
Quench-and-temper brings carbon and alloy steel to the property class ordered — 8.8, 10.9 or 12.9 — with the furnace charge tracked so a finished lot can be traced back to it.
Core hardness and tensile tested per lot to ISO 898-1.
04
Surface treatment
Zinc, zinc-nickel, hot-dip galvanizing, black oxide, phosphate and Dacromet, selected against the service environment rather than against the price list.
Coating thickness and neutral salt spray hours to ISO 9227.
Frequently Asked Questions
What standard and drive type do Fine-Thread Hex Flange Bolts, Small Series use?
Fine-Thread Hex Flange Bolts, Small Series are manufactured to ISO 15072 and use an external hex drive. The dimensional values on this page follow that standard.
What is the size range of Fine-Thread Hex Flange Bolts, Small Series?
The table on this page lists 7 sizes for Fine-Thread Hex Flange Bolts, Small Series, ranging from M8x1 to M16x1.5. Sizes outside the table can be quoted on request.
In which materials are Fine-Thread Hex Flange Bolts, Small Series supplied?
Fine-Thread Hex Flange Bolts, Small Series are supplied in carbon steel in property classes 8.8 / 10.9 / 12.9 and stainless A2 (304) / A4 (316), with finishes including zinc plating, hot-dip galvanizing and black oxide. Choose material and finish to suit the load and the service environment for Fine-Thread Hex Flange Bolts, Small Series.
What spanner sizes do Fine-Thread Hex Flange Bolts, Small Series take?
The width-across-flats for the smallest size on this page is 10 mm; the full table opposite the drawing lists the spanner size for every Fine-Thread Hex Flange Bolts, Small Series.
How do I request a quotation?
Use the parametric drawing on this page to set the exact configuration (size, material, finish) and click "Request this configuration" — a specialist from Engineering Hardware will respond within one business day.
Need a fastener quote or a spec sheet?Message our engineers on WhatsApp — send a drawing or DIN number and get pricing back fast.Start WhatsApp Chat →
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