310express(Div. of SAIMA CORP.)

Largest fastener distributor in Japan since 1952. TRF®, Tamper Resistant Fastener, Security Fastener, 310Slim®, Ultra thin head Screw.

[310express(Div. of SAIMA CORP.) @310express]

NOTICE
TEMPORARY CLOSURE
Due to the Approaching Typhoon
June 3, 2026
We apologize for any inconvenience and thank you for your understanding.

[310express(Div. of SAIMA CORP.) @310express]

【SAMURAI Fastener Story Vol.35 updated!】
Tak Saima talks about publishing CO₂ emissions data for self-manufactured screws — the first initiative of its kind in Japan’s screw industry.

【Vol. 35】SAIMA has published CO₂ emissions data for our screws
▶https://t.co/E0jCWKSeJ2

[310express(Div. of SAIMA CORP.) @310express]

🔩 June 1st is “Screw Day” in Japan!

At SAIMA CORPORATION & 310 EXPRESS COMPANY, we support manufacturers with innovative fastening solutions and flexible small-lot purchasing.

TRF | 310Slim | Non-Sert | 310Micro | 310w/Washer
Need a fastening solution? Contact us anytime.

[310express(Div. of SAIMA CORP.) @310express]

Like a samurai, precision leaves no room for excess.
SAIMA’s 310Slim® ultra-low head screw features a 0.5mm head height.
Perfect for robotics, drones, wearables, and compact electronics where every millimeter counts.
Slimmer designs. Less interference. No compromise on strength.

[310express(Div. of SAIMA CORP.) @310express]

Many engineers at recent exhibitions shared issues with conventional low head screws:
✔ Cam-out
✔ Damaged hex sockets
✔ Unstable torque in tight spaces

SAIMA’s 310Slim features a 6-Lobe + Quastix design for smoother, more reliable fastening.

Already adopted in Europe.

[310express(Div. of SAIMA CORP.) @310express]

Low-profile fastening solutions are essential for compact, lightweight product design.

Ultra-low head hex socket screws may lose head strength due to limited material volume.

SAIMA 310Slim Screw balances:
✔ Ultra-low head design
✔ Space saving
✔ Reliable fastening

[310express(Div. of SAIMA CORP.) @310express]

Tak Saima, CEO of 310express, discusses SAIMA’s unique “cat screws.” Inspired by a middle schooler and made from recycled PET caps, these ISO metric screws blend sustainability with playful design.

【Vol.34】Do You Like Cats? SAMURAI Fastener Story: https://t.co/ZQjVLIUZbS

[310express(Div. of SAIMA CORP.) @310express]

SAIMA now offers Low Head Tamper Screws in M3/M4/M5, all standard stock with immediate shipment. Perfect for tamper‑resistant designs in Radio Law–regulated devices and safety‑critical products like toys. Achieve compact design+stronger security. Details▼ https://t.co/EtqOcakqmJ

[310express(Div. of SAIMA CORP.) @310express]

Tak Saima, CEO of 310express, talks about the launch of Faslab—spun off from over 25 years of expertise—to advance fastening technology in Japan.

【Vol. 33】Fastening Lab. Inc.

SAMURAI Fastener Story:
https://t.co/pLqj7T3TUD

[310express(Div. of SAIMA CORP.) @310express]

Did you know 310Slim is used by ski boot makers?
Its ultra-thin head enables a sleek, flat finish.
Ideal for high performance and refined design.
Reduces protrusion while maintaining fastening.
Explore how it enhances your products—connect!
▶See 310Slim:
https://t.co/HnjcoHeKvT

[310express(Div. of SAIMA CORP.) @310express]

Eliminate "countersinking" and cut costs with 310Slim, the lowest-profile screw.

No extra machining—save labor.
Use thinner materials without losing strength.
Flush finish for compact designs.

▶ https://t.co/HnjcoHeKvT
▶ https://t.co/eSaZ0PwWZq

[310express(Div. of SAIMA CORP.) @310express]

Just back from my Europe trip, it was great to reconnect with many partners! At SAIMA CORPORATION, we focus on niche fastening solutions:

• 310Slim (Ultra Low Head Screws)
https://t.co/HnjcoHfilr

We may be small, but we share unique solutions and insights.

[310express(Div. of SAIMA CORP.) @310express]

【SAMURAI Fastener Story Vol.32 updated!】
Tak Saima, CEO of 310express, shares insights on the rapid export of ultra-micro screws and why advanced torque control is essential in precision fastening.

【Vol. 32】Do You Know M1.7 Screws?

▶https://t.co/vs0UWCJgdg

[310express(Div. of SAIMA CORP.) @310express]

We’re currently in Germany.

We’re excited to meet many of you during our stay!
This is a great opportunity to see and experience our ultra-low-head screws firsthand.

We’ll be here until the 25th — feel free to reach out or schedule a meeting with us:
▶ https://t.co/wFbiKR7j7C

[310express(Div. of SAIMA CORP.) @310express]

【SAMURAI Fastener Story Vol.31 updated!】
Tak Saima talks about the new type of tamper screws.
He explains the background behind the requirement for low-head screws even in tamper screws.

【Vol. 31】Low Head Tamper Screws Now available in stock
▶https://t.co/3SbWTSlfWY

[310express(Div. of SAIMA CORP.) @310express]

March 10 is SAIMA Day. Our team will learn about the SDGs and regional circular business through a Fujisawa Beer brewery tour and talk on sustainable agriculture.

※ Office closed March 10
※ Business resumes March 11

[310express(Div. of SAIMA CORP.) @310express]

Developed with SANYO DENKI
Self-tapping screw for plastic frame fan “San Ace”
SY–non-sert®
Unique thread design reduces deformation & cracking.

✔ 5-piece packs available online
✔ For 100+ pcs, contact SAIMA directly

🛒https://t.co/iEFIOwKDbx
🔎https://t.co/WClwc9nUQ3

[310express(Div. of SAIMA CORP.) @310express]

SAMURAI Fastener Story【Vol.30 Size and Weight Reduction - Miniature Screws (M2 and Smaller)】　updated!

Tak Saima talks about miniature screws.
Learn why they’re called camera screws, what standards exist, and Japan's world-leading supply capabilities.
▶https://t.co/RFylMbdUnD

[310express(Div. of SAIMA CORP.) @310express]

SAIMA ORIGINAL Ultra low head screw “310Slim” is available via our distributors in Germany (https://t.co/WoV51Sjxnh), Malaysia (https://t.co/Ee0PTSDV40), Singapore (https://t.co/3070UpQOG3), and China (https://t.co/ieIViXAnRI).

Contact your local partner anytime for details.

[310express(Div. of SAIMA CORP.) @310express]

Introducing the first low-head screw in our TRF Tamper-Resistant Series.
The new Low Head System6 Machine Screw delivers high security in a slimmer profile—ideal for space-limited applications, without compromising safety or design.

Learn more: https://t.co/Mhj6eIKyGW