M4x30 DIN 912 A4-70 Black Oxide socket head cap screws - 100 pcs.

M4×30 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, partial thread. Length l = 30 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

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. This variant is 30 mm long and has a partial thread. The product sheet gives dimension b = 20 mm; the value is quoted from the catalogue without adding unspecified tolerances or maximum/minimum qualifiers.

Scope of delivery and weight

Sales unit: one full pack of 100 M4×30 mm screws. Catalogue weight of the quantity sold: 0,370 kg, calculated from 3,7 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 = 30 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, partial thread; hex key s = 3 mm. The catalogue specifies a full thread for L ≤ 25 mm. This variant is 30 mm long and has a partial thread. The product sheet gives dimension b = 20 mm; the value is quoted from the catalogue without adding unspecified tolerances or maximum/minimum qualifiers.

What is the lead time?

The lead time is 7–14 days.