M4x25 DIN 912 A4-70 Black Oxide socket head cap screws - 100 pcs.
M4×25 mm DIN 912 screws, A4 stainless steel, property class 70, Black Oxide. Cylindrical head, 3 mm hexagon socket. Metric right-hand thread M4×0,7, full thread; length 25 mm under the head. Full pack of 100 pieces; catalogue weight of this quantity 0,310 kg. Lead time: 7–14 days.

M4×25 mm DIN 912 bolts — A4-70 Black Oxide
Socket head cap screws with a hexagon socket for threaded joints. Material: A4 stainless steel, property class 70; Black Oxide finish. The socket allows tightening with a suitable hex key.
Key specifications
Metric right-hand thread M4×0,7 mm, full thread. Length l = 25 mm is measured under the head. Maximum head diameter dk 7 mm, maximum head height k 4 mm, key size s = 3 mm. Sold in full packs of 100 pieces. Lead time: 7–14 days.

Technical specifications
| Standard | DIN 912 |
|---|---|
| ISO reference | ISO 4762 (catalogue reference) |
| BS reference | BS 4168-1 (catalogue reference) |
| ASME reference | ASME B18.3.1M (catalogue reference) |
| NEN reference | NEN 1241 (catalogue reference) |
| NF reference | NF E25-125 (catalogue reference) |
| Product type | Socket head cap screw |
| Head shape | Cylindrical |
| Socket type | Hexagon socket |
| Thread diameter | M4 |
| Length under head l [mm] | 25 |
| Thread pitch P [mm] | 0,7 |
| Thread direction | Right-hand |
| Material | A4 stainless steel |
| Class | 70 |
| Finish | Black Oxide |
| Maximum head diameter dk [mm] | 7 |
| Maximum head height k [mm] | 4 |
| Wrench size s [mm] | 3 |
| Thread type | Metric, full thread |
| Full thread for L ≤ [mm] | 25 |
| Catalogue dimension b [mm] | 20 — series parameter; this variant has a full thread |
| Pieces per pack | 100 |
| Sales unit | Pack |
| Pack weight [kg] | 0,310 |
The primary designation is DIN 912. The individual product sheet also lists catalogue references ISO 4762, BS 4168-1, ASME B18.3.1M, NEN 1241 and NF E25-125. Listing these references does not declare that all the standards are fully identical.
The catalogue specifies a full thread for L ≤ 25 mm. The variant with a length of 25 mm meets this condition. The catalogue value b = 20 mm is a series parameter and has not been assigned as the thread length of this variant.

Scope of delivery and weight
Sales unit: one full pack of 100 M4×25 mm screws. Catalogue weight of the quantity sold: 0,310 kg, calculated from 3,1 g/piece × 100 pieces and rounded to the nearest whole gram. This is the catalogue weight of the quantity, not an in-house measurement or a confirmed gross box weight. Product and box photographs show a common example of the family; the exact dimensions and thread coverage of this variant are given in the table and diagram. The diagram is a catalogue illustration, not a manufacturing drawing.
Frequently asked questions
How many bolts does the price cover?
The price is for one full pack of 100 pieces.
How is the length of a DIN 912 bolt measured?
Length l = 25 mm is measured under the head, from the bearing surface to the end of the bolt.
What thread and wrench size does this variant have?
Metric right-hand thread M4×0,7, full thread; hex key s = 3 mm. The catalogue specifies a full thread for L ≤ 25 mm. The variant with a length of 25 mm meets this condition. The catalogue value b = 20 mm is a series parameter and has not been assigned as the thread length of this variant.
What is the lead time?
The lead time is 7–14 days.
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ConditionNew
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StandardDIN 912
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Sales unitPack
-
Number of pieces per pack100
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MaterialA4 stainless steel
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Thread typeMetric, full thread
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Wrench size S [mm]3
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Drive typeHexagonal
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Head shapeCylindrical
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Class70
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Thread directionRight-hand
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FinishBlack Oxide
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Product typeCylindrical head screw
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Thread pitch P [mm]0,7
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Head diameter dk max. [mm]7
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Head height k max. [mm]4
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Pack mass [kg]0,310
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Full thread for L ≤ [mm]25
-
Reference ISOISO 4762 (catalogue reference)
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Thread diameterM4
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Reference NFNF E25-125 (catalogue reference)
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Reference NENNEN 1241 (catalogue reference)
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Reference BSBS 4168-1 (catalogue reference)
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Reference ASMEASME B18.3.1M (catalogue reference)
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Length under head l [mm]25
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Catalogue dimension b [mm]20 — series parameter; this variant has a full thread
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